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23131013332 = 227829996511
BaseRepresentation
bin10101100010101101…
…110100000011010100
32012201001002020002111
4111202231310003110
5334333014411312
614343133520404
71446131240440
oct254255640324
965631066074
1023131013332
11989a943749
124596643104
132248270c4b
141196073820
15905a8d8a7
hex562b740d4

23131013332 has 24 divisors (see below), whose sum is σ = 46317877760. Its totient is φ = 9901323360.

The previous prime is 23131013287. The next prime is 23131013341. The reversal of 23131013332 is 23331013132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475044 + ... + 521467.

Almost surely, 223131013332 is an apocalyptic number.

It is an amenable number.

23131013332 is an abundant number, since it is smaller than the sum of its proper divisors (23186864428).

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

23131013332 is a wasteful number, since it uses less digits than its factorization.

23131013332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997351 (or 997349 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23131013332 its reverse (23331013132), we get a palindrome (46462026464).

The spelling of 23131013332 in words is "twenty-three billion, one hundred thirty-one million, thirteen thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 829 1658 3316 5803 11606 23212 996511 1993022 3986044 6975577 13951154 27902308 826107619 1652215238 3304430476 5782753333 11565506666 23131013332