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12757621174272 = 212331323197227
BaseRepresentation
bin1011100110100101110101…
…1110100111000000000000
31200011121122112222102212000
42321221131132213000000
53133010102010034042
643044434213104000
72454464513516532
oct271513536470000
950147575872760
1012757621174272
114079527620587
121520619628000
13717066802b00
14321687869852
15171cc598874c
hexb9a5d7a7000

12757621174272 has 1248 divisors, whose sum is σ = 42870535464960. Its totient is φ = 3743070289920.

The previous prime is 12757621174237. The next prime is 12757621174321. The reversal of 12757621174272 is 27247112675721.

12757621174272 is a `hidden beast` number, since 1 + 2 + 7 + 5 + 7 + 621 + 1 + 7 + 4 + 2 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (1248).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 56200974223 + ... + 56200974449.

Almost surely, 212757621174272 is an apocalyptic number.

12757621174272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12757621174272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21435267732480).

12757621174272 is an abundant number, since it is smaller than the sum of its proper divisors (30112914290688).

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

12757621174272 is a wasteful number, since it uses less digits than its factorization.

12757621174272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 373 counting only the distinct ones).

The product of its digits is 4609920, while the sum is 54.

The spelling of 12757621174272 in words is "twelve trillion, seven hundred fifty-seven billion, six hundred twenty-one million, one hundred seventy-four thousand, two hundred seventy-two".