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57426704349 = 372734604969
BaseRepresentation
bin110101011110111001…
…011111011111011101
312111020011110211201220
4311132321133133131
51420102214014344
642214221323553
74102041635010
oct653671373735
9174204424656
1057426704349
1122399971a43
12b1681065b9
1355525a7141
142acac03377
151761899c19
hexd5ee5f7dd

57426704349 has 8 divisors (see below), whose sum is σ = 87507359040. Its totient is φ = 32815259616.

The previous prime is 57426704347. The next prime is 57426704353. The reversal of 57426704349 is 94340762475.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57426704349 - 21 = 57426704347 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57426704347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1367302464 + ... + 1367302505.

It is an arithmetic number, because the mean of its divisors is an integer number (10938419880).

Almost surely, 257426704349 is an apocalyptic number.

It is an amenable number.

57426704349 is a deficient number, since it is larger than the sum of its proper divisors (30080654691).

57426704349 is a wasteful number, since it uses less digits than its factorization.

57426704349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734604979.

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 57426704349 in words is "fifty-seven billion, four hundred twenty-six million, seven hundred four thousand, three hundred forty-nine".

Divisors: 1 3 7 21 2734604969 8203814907 19142234783 57426704349