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57213753371 is a prime number
BaseRepresentation
bin110101010010001101…
…001001100000011011
312110200022202210220122
4311102031021200123
51414133210101441
642141133143455
74063544610455
oct652215114033
9173608683818
1057213753371
112229a7437a5
12b10892ab8b
13551a437048
142aaa80d2d5
15174cd3334b
hexd5234981b

57213753371 has 2 divisors, whose sum is σ = 57213753372. Its totient is φ = 57213753370.

The previous prime is 57213753361. The next prime is 57213753403. The reversal of 57213753371 is 17335731275.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57213753371 is a prime.

It is a super-2 number, since 2×572137533712 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57213753361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28606876685 + 28606876686.

It is an arithmetic number, because the mean of its divisors is an integer number (28606876686).

Almost surely, 257213753371 is an apocalyptic number.

57213753371 is a deficient number, since it is larger than the sum of its proper divisors (1).

57213753371 is an equidigital number, since it uses as much as digits as its factorization.

57213753371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 463050, while the sum is 44.

The spelling of 57213753371 in words is "fifty-seven billion, two hundred thirteen million, seven hundred fifty-three thousand, three hundred seventy-one".