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189875334480 = 243513427114249
BaseRepresentation
bin1011000011010101110…
…0111010110101010000
3200011002201221101102120
42300311130322311100
511102331041200410
6223121051214240
716501200466506
oct2606534726520
9604081841376
10189875334480
1173586749137
1230970a47380
1314b9c863330
14929358a676
154e1468d570
hex2c3573ad50

189875334480 has 160 divisors (see below), whose sum is σ = 634084416000. Its totient is φ = 46724321280.

The previous prime is 189875334463. The next prime is 189875334487. The reversal of 189875334480 is 84433578981.

189875334480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189875334487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13318396 + ... + 13332644.

It is an arithmetic number, because the mean of its divisors is an integer number (3963027600).

Almost surely, 2189875334480 is an apocalyptic number.

189875334480 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 189875334480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317042208000).

189875334480 is an abundant number, since it is smaller than the sum of its proper divisors (444209081520).

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

189875334480 is a wasteful number, since it uses less digits than its factorization.

189875334480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18549 (or 18543 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 189875334480 in words is "one hundred eighty-nine billion, eight hundred seventy-five million, three hundred thirty-four thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 390 520 624 780 1040 1560 3120 4271 8542 12813 14249 17084 21355 25626 28498 34168 42710 42747 51252 55523 56996 64065 68336 71245 85420 85494 102504 111046 113992 128130 142490 166569 170840 170988 185237 205008 213735 222092 227984 256260 277615 284980 333138 341680 341976 370474 427470 444184 512520 555230 555711 569960 666276 683952 740948 832845 854940 888368 926185 1025040 1110460 1111422 1139920 1332552 1481896 1665690 1709880 1852370 2220920 2222844 2665104 2778555 2963792 3331380 3419760 3704740 4441840 4445688 5557110 6662760 7409480 8891376 11114220 13325520 14818960 22228440 44456880 60857479 121714958 182572437 243429916 304287395 365144874 486859832 608574790 730289748 791147227 912862185 973719664 1217149580 1460579496 1582294454 1825724370 2373441681 2434299160 2921158992 3164588908 3651448740 3955736135 4746883362 4868598320 6329177816 7302897480 7911472270 9493766724 11867208405 12658355632 14605794960 15822944540 18987533448 23734416810 31645889080 37975066896 47468833620 63291778160 94937667240 189875334480