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189236092328720 = 245311311050155469
BaseRepresentation
bin101011000001101111110110…
…000011111101101100010000
3220211000210102122100022222222
4223001233312003331230100
5144300421004114004340
61510245505523520212
754600566530604303
oct5301576603755420
9824023378308888
10189236092328720
1155329637821388
1219283280529068
138178b6b7a3a28
1434a310bb7cb3a
1516d26e97578b5
hexac1bf60fdb10

189236092328720 has 160 divisors (see below), whose sum is σ = 457685373404160. Its totient is φ = 72685267200000.

The previous prime is 189236092328711. The next prime is 189236092328741. The reversal of 189236092328720 is 27823290632981.

It is a Cunningham number, because it is equal to 137563112-1.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3411537146 + ... + 3411592614.

It is an arithmetic number, because the mean of its divisors is an integer number (2860533583776).

Almost surely, 2189236092328720 is an apocalyptic number.

189236092328720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189236092328720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228842686702080).

189236092328720 is an abundant number, since it is smaller than the sum of its proper divisors (268449281075440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189236092328720 is a wasteful number, since it uses less digits than its factorization.

189236092328720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66145 (or 66139 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 189236092328720 in words is "one hundred eighty-nine trillion, two hundred thirty-six billion, ninety-two million, three hundred twenty-eight thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 131 155 248 262 310 496 524 620 655 1048 1240 1310 2096 2480 2620 4061 5240 8122 10480 10501 16244 20305 21002 32488 40610 42004 52505 55469 64976 81220 84008 105010 110938 162440 168016 210020 221876 277345 324880 325531 420040 443752 554690 651062 840080 887504 1109380 1302124 1375631 1627655 1719539 2218760 2604248 2751262 3255310 3439078 4437520 5208496 5502524 6510620 6878155 6878156 7266439 8597695 11005048 13021240 13756310 13756312 14532878 17195390 22010096 26042480 27512620 27512624 29065756 34390780 36332195 42644561 55025240 58131512 68781560 72664390 85289122 110050480 116263024 137563120 145328780 170578244 213222805 225259609 290657560 341156488 426445610 450519218 581315120 582479969 682312976 852891220 901038436 1126298045 1164959938 1705782440 1802076872 2252596090 2329919876 2912399845 3411564880 3604153744 4505192180 4659839752 5824799690 9010384360 9319679504 11649599380 18020768720 18056879039 23299198760 36113758078 46598397520 72227516156 76304875939 90284395195 144455032312 152609751878 180568790390 288910064624 305219503756 361137580780 381524379695 610439007512 722275161560 763048759390 1220878015024 1444550323120 1526097518780 2365451154109 3052195037560 4730902308218 6104390075120 9461804616436 11827255770545 18923609232872 23654511541090 37847218465744 47309023082180 94618046164360 189236092328720