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56021251374 = 23311199473929
BaseRepresentation
bin110100001011001000…
…000111010100101110
312100121012212102201000
4310023020013110232
51404212420020444
641422533501130
74022154531324
oct641310072456
9170535772630
1056021251374
1121838599360
12aa354a17a6
13538a36966a
1429d62b1d14
1516cd2c9469
hexd0b20752e

56021251374 has 64 divisors (see below), whose sum is σ = 136491840000. Its totient is φ = 16890793920.

The previous prime is 56021251373. The next prime is 56021251387. The reversal of 56021251374 is 47315212065.

56021251374 is a `hidden beast` number, since 5 + 60 + 2 + 12 + 513 + 74 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56021251373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118759 + ... + 355170.

It is an arithmetic number, because the mean of its divisors is an integer number (2132685000).

Almost surely, 256021251374 is an apocalyptic number.

56021251374 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

56021251374 is an abundant number, since it is smaller than the sum of its proper divisors (80470588626).

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

56021251374 is a wasteful number, since it uses less digits than its factorization.

56021251374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474150 (or 474144 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 56021251374 in words is "fifty-six billion, twenty-one million, two hundred fifty-one thousand, three hundred seventy-four".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 199 297 398 594 597 1194 1791 2189 3582 4378 5373 6567 10746 13134 19701 39402 59103 118206 473929 947858 1421787 2843574 4265361 5213219 8530722 10426438 12796083 15639657 25592166 31279314 46918971 93837942 94311871 140756913 188623742 281513826 282935613 565871226 848806839 1037430581 1697613678 2074861162 2546420517 3112291743 5092841034 6224583486 9336875229 18673750458 28010625687 56021251374