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57706493420 = 22510128567571
BaseRepresentation
bin110101101111100100…
…110011010111101100
312111221122221121012002
4311233210303113230
51421140330242140
642302054231432
74112010046412
oct655744632754
9174848847162
1057706493420
11225228a1684
12b225955578
1355985497c4
142b160352b2
15177b215415
hexd6f9335ec

57706493420 has 24 divisors (see below), whose sum is σ = 122383478448. Its totient is φ = 22854056000.

The previous prime is 57706493419. The next prime is 57706493443. The reversal of 57706493420 is 2439460775.

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, 14281766 + ... + 14285805.

It is an arithmetic number, because the mean of its divisors is an integer number (5099311602).

Almost surely, 257706493420 is an apocalyptic number.

It is an amenable number.

57706493420 is an abundant number, since it is smaller than the sum of its proper divisors (64676985028).

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

57706493420 is a wasteful number, since it uses less digits than its factorization.

57706493420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28567681 (or 28567679 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 57706493420 in words is "fifty-seven billion, seven hundred six million, four hundred ninety-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 28567571 57135142 114270284 142837855 285675710 571351420 2885324671 5770649342 11541298684 14426623355 28853246710 57706493420