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23212297308 = 2231934358109
BaseRepresentation
bin10101100111100011…
…111000110001011100
32012220201000212202010
4111213203320301130
5340014322003213
614355200031220
71451136162114
oct254743706134
965821025663
1023212297308
119931811592
1245b9902510
13225c060885
1411a2b92044
1590cc97ac3
hex5678f8c5c

23212297308 has 12 divisors (see below), whose sum is σ = 54162027080. Its totient is φ = 7737432432.

The previous prime is 23212297307. The next prime is 23212297331. The reversal of 23212297308 is 80379221232.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×232122973083 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212297307) 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 3 ways as a sum of consecutive naturals, for example, 967179043 + ... + 967179066.

Almost surely, 223212297308 is an apocalyptic number.

It is an amenable number.

23212297308 is an abundant number, since it is smaller than the sum of its proper divisors (30949729772).

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

23212297308 is a wasteful number, since it uses less digits than its factorization.

23212297308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934358116 (or 1934358114 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 23212297308 in words is "twenty-three billion, two hundred twelve million, two hundred ninety-seven thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 1934358109 3868716218 5803074327 7737432436 11606148654 23212297308