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23105231037 = 32717911531777
BaseRepresentation
bin10101100001001011…
…011101100010111101
32012122020120100102200
4111201023131202331
5334304414343122
614340413142113
71445366136420
oct254113354275
965566510380
1023105231037
119887334069
124589a8a939
132242b14955
1411928819b7
159036995ac
hex5612dd8bd

23105231037 has 48 divisors (see below), whose sum is σ = 38409920640. Its totient is φ = 13110460416.

The previous prime is 23105231033. The next prime is 23105231047. The reversal of 23105231037 is 73013250132.

23105231037 is a `hidden beast` number, since 2 + 31 + 0 + 523 + 103 + 7 = 666.

It is not a de Polignac number, because 23105231037 - 22 = 23105231033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23105231037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23105231033) 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 47 ways as a sum of consecutive naturals, for example, 13001493 + ... + 13003269.

It is an arithmetic number, because the mean of its divisors is an integer number (800206680).

Almost surely, 223105231037 is an apocalyptic number.

It is an amenable number.

23105231037 is a deficient number, since it is larger than the sum of its proper divisors (15304689603).

23105231037 is a wasteful number, since it uses less digits than its factorization.

23105231037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122 (or 3119 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

Adding to 23105231037 its reverse (73013250132), we get a palindrome (96118481169).

The spelling of 23105231037 in words is "twenty-three billion, one hundred five million, two hundred thirty-one thousand, thirty-seven".

Divisors: 1 3 7 9 21 63 179 537 1153 1253 1611 1777 3459 3759 5331 8071 10377 11277 12439 15993 24213 37317 72639 111951 206387 318083 619161 954249 1444709 1857483 2048881 2226581 2862747 4334127 6146643 6679743 13002381 14342167 18439929 20039229 43026501 129079503 366749699 1100249097 2567247893 3300747291 7701743679 23105231037