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57422374891 = 78203196413
BaseRepresentation
bin110101011110101000…
…111110011111101011
312111012212022212211121
4311132220332133223
51420100111444031
642213544440111
74101660063460
oct653650763753
9174185285747
1057422374891
1122397485182
12b166779037
13555171c62b
142aca3d7667
1517612e2011
hexd5ea3e7eb

57422374891 has 4 divisors (see below), whose sum is σ = 65625571312. Its totient is φ = 49219178472.

The previous prime is 57422374871. The next prime is 57422374901. The reversal of 57422374891 is 19847322475.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57422374891 - 215 = 57422342123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57422374811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4101598200 + ... + 4101598213.

It is an arithmetic number, because the mean of its divisors is an integer number (16406392828).

Almost surely, 257422374891 is an apocalyptic number.

57422374891 is a deficient number, since it is larger than the sum of its proper divisors (8203196421).

57422374891 is an equidigital number, since it uses as much as digits as its factorization.

57422374891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8203196420.

The product of its digits is 3386880, while the sum is 52.

The spelling of 57422374891 in words is "fifty-seven billion, four hundred twenty-two million, three hundred seventy-four thousand, eight hundred ninety-one".

Divisors: 1 7 8203196413 57422374891