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57426834380 = 2254761092377
BaseRepresentation
bin110101011110111001…
…111111001111001100
312111020011201110002212
4311132321333033030
51420102232200010
642214224205552
74102043016056
oct653671771714
9174204643085
1057426834380
1122399a50703
12b1681698b8
135552621396
142acac388d6
1517618c3505
hexd5ee7f3cc

57426834380 has 24 divisors (see below), whose sum is σ = 123162234048. Its totient is φ = 22481994368.

The previous prime is 57426834379. The next prime is 57426834397. The reversal of 57426834380 is 8343862475.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30545249 + ... + 30547128.

It is an arithmetic number, because the mean of its divisors is an integer number (5131759752).

Almost surely, 257426834380 is an apocalyptic number.

It is an amenable number.

57426834380 is an abundant number, since it is smaller than the sum of its proper divisors (65735399668).

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

57426834380 is a wasteful number, since it uses less digits than its factorization.

57426834380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61092433 (or 61092431 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 57426834380 in words is "fifty-seven billion, four hundred twenty-six million, eight hundred thirty-four thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 61092377 122184754 244369508 305461885 610923770 1221847540 2871341719 5742683438 11485366876 14356708595 28713417190 57426834380