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57375028240 = 2451450349451
BaseRepresentation
bin110101011011110100…
…010111010000010000
312111002120020102102221
4311123310113100100
51420001001400430
642205133550424
74100543456545
oct653364272020
9174076212387
1057375028240
1122372786a12
12b152945414
135544982b6a
142ac3dd0bcc
15175c08d57a
hexd5bd17410

57375028240 has 40 divisors (see below), whose sum is σ = 133408836288. Its totient is φ = 22947964800.

The previous prime is 57375028231. The next prime is 57375028247. The reversal of 57375028240 is 4282057375.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (57375028247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135515 + ... + 1184965.

Almost surely, 257375028240 is an apocalyptic number.

It is an amenable number.

57375028240 is an abundant number, since it is smaller than the sum of its proper divisors (76033808048).

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

57375028240 is a wasteful number, since it uses less digits than its factorization.

57375028240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63967 (or 63961 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 57375028240 in words is "fifty-seven billion, three hundred seventy-five million, twenty-eight thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 14503 29006 49451 58012 72515 98902 116024 145030 197804 232048 247255 290060 395608 494510 580120 791216 989020 1160240 1978040 3956080 717187853 1434375706 2868751412 3585939265 5737502824 7171878530 11475005648 14343757060 28687514120 57375028240