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23107218932 = 2274722777351
BaseRepresentation
bin10101100001010011…
…000010110111110100
32012122101022100022102
4111201103002313310
5334310422001212
614340523521232
71445422056140
oct254123026764
965571270272
1023107218932
119888471656
12458a689218
13224335c715
141192c3c220
1590393d5c2
hex5614c2df4

23107218932 has 48 divisors (see below), whose sum is σ = 47406256128. Its totient is φ = 9649567200.

The previous prime is 23107218931. The next prime is 23107218943. The reversal of 23107218932 is 23981270132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23107218931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260057 + ... + 337407.

It is an arithmetic number, because the mean of its divisors is an integer number (987630336).

Almost surely, 223107218932 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23107218932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23703128064).

23107218932 is an abundant number, since it is smaller than the sum of its proper divisors (24299037196).

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

23107218932 is a wasteful number, since it uses less digits than its factorization.

23107218932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77636 (or 77634 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 23107218932 in words is "twenty-three billion, one hundred seven million, two hundred eighteen thousand, nine hundred thirty-two".

Divisors: 1 2 4 7 14 28 47 94 188 227 329 454 658 908 1316 1589 3178 6356 10669 21338 42676 74683 77351 149366 154702 298732 309404 541457 1082914 2165828 3635497 7270994 14541988 17558677 25448479 35117354 50896958 70234708 101793916 122910739 245821478 491642956 825257819 1650515638 3301031276 5776804733 11553609466 23107218932