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57562163868 = 223111922951421
BaseRepresentation
bin110101100110111110…
…001110101010011100
312111120121100220021010
4311212332032222130
51420341403220433
642235500535220
74105305214506
oct654676165234
9174517326233
1057562163868
1122459382760
12b1a5551510
1355746848c1
142b00bc4d76
15176d705e63
hexd66f8ea9c

57562163868 has 48 divisors (see below), whose sum is σ = 154233555840. Its totient is φ = 16525022400.

The previous prime is 57562163851. The next prime is 57562163899. The reversal of 57562163868 is 86836126575.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

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, 11473203 + ... + 11478218.

It is an arithmetic number, because the mean of its divisors is an integer number (3213199080).

Almost surely, 257562163868 is an apocalyptic number.

It is an amenable number.

57562163868 is an abundant number, since it is smaller than the sum of its proper divisors (96671391972).

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

57562163868 is a wasteful number, since it uses less digits than its factorization.

57562163868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22951458 (or 22951456 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 57.

The spelling of 57562163868 in words is "fifty-seven billion, five hundred sixty-two million, one hundred sixty-three thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 11 12 19 22 33 38 44 57 66 76 114 132 209 228 418 627 836 1254 2508 22951421 45902842 68854263 91805684 137708526 252465631 275417052 436076999 504931262 757396893 872153998 1009862524 1308230997 1514793786 1744307996 2616461994 3029587572 4796846989 5232923988 9593693978 14390540967 19187387956 28781081934 57562163868