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23995638761472 = 21133761992701
BaseRepresentation
bin1010111010010111010111…
…00001100100100000000000
310010221221221022201100001000
411131023223201210200000
511121121032010331342
6123011235543412000
75024425204065630
oct535135341444000
9103857838640030
1023995638761472
117711547574644
122836622a54000
131050a1869b351
145cd5762926c0
152b92ad01244c
hex15d2eb864800

23995638761472 has 192 divisors, whose sum is σ = 81235236700800. Its totient is φ = 6855896678400.

The previous prime is 23995638761443. The next prime is 23995638761483. The reversal of 23995638761472 is 27416783659932.

It is a happy number.

23995638761472 is a `hidden beast` number, since 2 + 3 + 9 + 9 + 56 + 38 + 76 + 1 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×239956387614722 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 23995638761472.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30609279 + ... + 31383422.

It is an arithmetic number, because the mean of its divisors is an integer number (423100191150).

Almost surely, 223995638761472 is an apocalyptic number.

It is an amenable number.

23995638761472 is an abundant number, since it is smaller than the sum of its proper divisors (57239597939328).

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

23995638761472 is an equidigital number, since it uses as much as digits as its factorization.

23995638761472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61992739 (or 61992713 counting only the distinct ones).

The product of its digits is 823011840, while the sum is 72.

The spelling of 23995638761472 in words is "twenty-three trillion, nine hundred ninety-five billion, six hundred thirty-eight million, seven hundred sixty-one thousand, four hundred seventy-two".