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23311312232 = 23131671342199
BaseRepresentation
bin10101101101011101…
…100110010101101000
32020011121100100200112
4111231131212111220
5340220143442412
614413054153452
71453450612265
oct255535462550
966147310615
1023311312232
11998269a9aa
124626ab2888
13227671aba0
1411b1da826c
15916805722
hex56d766568

23311312232 has 32 divisors (see below), whose sum is σ = 47352816000. Its totient is φ = 10694633664.

The previous prime is 23311312229. The next prime is 23311312243. The reversal of 23311312232 is 23221311332.

It is a junction number, because it is equal to n+sod(n) for n = 23311312198 and 23311312207.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 653732 + ... + 688467.

It is an arithmetic number, because the mean of its divisors is an integer number (1479775500).

Almost surely, 223311312232 is an apocalyptic number.

It is an amenable number.

23311312232 is an abundant number, since it is smaller than the sum of its proper divisors (24041503768).

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

23311312232 is a wasteful number, since it uses less digits than its factorization.

23311312232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342385 (or 1342381 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 23311312232 its reverse (23221311332), we get a palindrome (46532623564).

The spelling of 23311312232 in words is "twenty-three billion, three hundred eleven million, three hundred twelve thousand, two hundred thirty-two".

Divisors: 1 2 4 8 13 26 52 104 167 334 668 1336 2171 4342 8684 17368 1342199 2684398 5368796 10737592 17448587 34897174 69794348 139588696 224147233 448294466 896588932 1793177864 2913914029 5827828058 11655656116 23311312232