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23040873870 = 2357832395531
BaseRepresentation
bin10101011101010101…
…111101010110001110
32012110202110122222220
4111131111331112032
5334141430430440
614330153520210
71443655124250
oct253525752616
965422418886
1023040873870
119853a77623
124570413066
1322326a06a1
1411880cbcd0
158ecbd58d0
hex55d57d58e

23040873870 has 128 divisors (see below), whose sum is σ = 64238469120. Its totient is φ = 5180327040.

The previous prime is 23040873859. The next prime is 23040873871. The reversal of 23040873870 is 7837804032.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23040873871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4163005 + ... + 4168535.

It is an arithmetic number, because the mean of its divisors is an integer number (501863040).

Almost surely, 223040873870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23040873870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32119234560).

23040873870 is an abundant number, since it is smaller than the sum of its proper divisors (41197595250).

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

23040873870 is a wasteful number, since it uses less digits than its factorization.

23040873870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870.

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 23040873870 in words is "twenty-three billion, forty million, eight hundred seventy-three thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 83 105 166 210 239 249 415 478 498 581 717 830 1162 1195 1245 1434 1673 1743 2390 2490 2905 3346 3486 3585 5019 5531 5810 7170 8365 8715 10038 11062 16593 16730 17430 19837 25095 27655 33186 38717 39674 50190 55310 59511 77434 82965 99185 116151 119022 138859 165930 193585 198370 232302 277718 297555 387170 416577 459073 580755 595110 694295 833154 918146 1161510 1321909 1377219 1388590 2082885 2295365 2643818 2754438 3213511 3965727 4165770 4590730 6427022 6609545 6886095 7931454 9253363 9640533 13219090 13772190 16067555 18506726 19281066 19828635 27760089 32135110 39657270 46266815 48202665 55520178 92533630 96405330 109718447 138800445 219436894 277600890 329155341 548592235 658310682 768029129 1097184470 1536058258 1645776705 2304087387 3291553410 3840145645 4608174774 7680291290 11520436935 23040873870