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23131163316 = 2233191604073
BaseRepresentation
bin10101100010101110…
…011000101010110100
32012201001100211211110
4111202232120222310
5334333034211231
614343141035020
71446132433632
oct254256305264
965631324743
1023131163316
11989aa363a8
1245966b5a70
1322482c42b1
1411960b2352
15905abd046
hex562b98ab4

23131163316 has 24 divisors (see below), whose sum is σ = 53989717824. Its totient is φ = 7707958720.

The previous prime is 23131163261. The next prime is 23131163351. The reversal of 23131163316 is 61336113132.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 263745 + ... + 340328.

It is an arithmetic number, because the mean of its divisors is an integer number (2249571576).

Almost surely, 223131163316 is an apocalyptic number.

It is an amenable number.

23131163316 is an abundant number, since it is smaller than the sum of its proper divisors (30858554508).

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

23131163316 is a wasteful number, since it uses less digits than its factorization.

23131163316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607271 (or 607269 counting only the distinct ones).

The product of its digits is 5832, while the sum is 30.

Adding to 23131163316 its reverse (61336113132), we get a palindrome (84467276448).

The spelling of 23131163316 in words is "twenty-three billion, one hundred thirty-one million, one hundred sixty-three thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 12 3191 6382 9573 12764 19146 38292 604073 1208146 1812219 2416292 3624438 7248876 1927596943 3855193886 5782790829 7710387772 11565581658 23131163316