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57220630347 = 31381072
BaseRepresentation
bin110101010010100111…
…011000011101001011
312110200210201012100110
4311102213120131023
51414141440132342
642141540405403
74063660222116
oct652247303513
9173623635313
1057220630347
11222a3610551
12b10b0a6863
13551b9a426a
142aab6bd57d
15174d740c9c
hexd529d874b

57220630347 has 6 divisors (see below), whose sum is σ = 76294726228. Its totient is φ = 38146810684.

The previous prime is 57220630331. The next prime is 57220630349. The reversal of 57220630347 is 74303602275.

It is not a de Polignac number, because 57220630347 - 24 = 57220630331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57220630349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345268 + ... + 483374.

Almost surely, 257220630347 is an apocalyptic number.

57220630347 is a deficient number, since it is larger than the sum of its proper divisors (19074095881).

57220630347 is an frugal number, since it uses more digits than its factorization.

57220630347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276217 (or 138110 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 39.

The spelling of 57220630347 in words is "fifty-seven billion, two hundred twenty million, six hundred thirty thousand, three hundred forty-seven".

Divisors: 1 3 138107 414321 19073543449 57220630347