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57126507400 = 2352285632537
BaseRepresentation
bin110101001101000000…
…010101001110001000
312110110020121020221101
4311031000111032020
51413443341214100
642124335151144
74061435205154
oct651500251610
9173406536841
1057126507400
1122255473596
12b0a36754b4
13550533a801
142a9cdbc064
15174534c86a
hexd4d015388

57126507400 has 24 divisors (see below), whose sum is σ = 132819130170. Its totient is φ = 22850602880.

The previous prime is 57126507371. The next prime is 57126507401. The reversal of 57126507400 is 470562175.

It can be written as a sum of positive squares in 3 ways, for example, as 27033278724 + 30093228676 = 164418^2 + 173474^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57126507400.

It is not an unprimeable number, because it can be changed into a prime (57126507401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142816069 + ... + 142816468.

Almost surely, 257126507400 is an apocalyptic number.

57126507400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57126507400 is an abundant number, since it is smaller than the sum of its proper divisors (75692622770).

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

57126507400 is a wasteful number, since it uses less digits than its factorization.

57126507400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285632553 (or 285632544 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The spelling of 57126507400 in words is "fifty-seven billion, one hundred twenty-six million, five hundred seven thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 285632537 571265074 1142530148 1428162685 2285060296 2856325370 5712650740 7140813425 11425301480 14281626850 28563253700 57126507400