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57030434280 = 23325158417873
BaseRepresentation
bin110101000111010001…
…110101110111101000
312110012112211020101200
4311013101311313220
51413244242344110
642111024044200
74056160456461
oct650721656750
9173175736350
1057030434280
1122206214416
12b077463660
1354bb470501
142a9032dd68
15173bbc16c0
hexd47475de8

57030434280 has 48 divisors (see below), whose sum is σ = 185348912580. Its totient is φ = 15208115712.

The previous prime is 57030434269. The next prime is 57030434287. The reversal of 57030434280 is 8243403075.

It is a happy number.

57030434280 is a `hidden beast` number, since 5 + 7 + 0 + 304 + 342 + 8 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51272356356 + 5758077924 = 226434^2 + 75882^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (57030434287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79208577 + ... + 79209296.

Almost surely, 257030434280 is an apocalyptic number.

It is an amenable number.

57030434280 is an abundant number, since it is smaller than the sum of its proper divisors (128318478300).

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

57030434280 is a wasteful number, since it uses less digits than its factorization.

57030434280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158417890 (or 158417883 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 57030434280 in words is "fifty-seven billion, thirty million, four hundred thirty-four thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 158417873 316835746 475253619 633671492 792089365 950507238 1267342984 1425760857 1584178730 1901014476 2376268095 2851521714 3168357460 3802028952 4752536190 5703043428 6336714920 7128804285 9505072380 11406086856 14257608570 19010144760 28515217140 57030434280