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57246259140 = 2234577197733
BaseRepresentation
bin110101010100001001…
…001001011111000100
312110202120221021110000
4311110021021133010
51414220020243030
642144254001300
74064421113460
oct652411113704
9173676837400
1057246259140
1122307025874
12b1177a6230
1355240a8725
142ab0c714a0
151750b04860
hexd542497c4

57246259140 has 480 divisors, whose sum is σ = 210561652224. Its totient is φ = 12750151680.

The previous prime is 57246259129. The next prime is 57246259159. The reversal of 57246259140 is 4195264275.

57246259140 is a `hidden beast` number, since 5 + 7 + 2 + 4 + 625 + 9 + 14 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 78098214 + ... + 78098946.

Almost surely, 257246259140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57246259140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105280826112).

57246259140 is an abundant number, since it is smaller than the sum of its proper divisors (153315393084).

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

57246259140 is a wasteful number, since it uses less digits than its factorization.

57246259140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 57246259140 in words is "fifty-seven billion, two hundred forty-six million, two hundred fifty-nine thousand, one hundred forty".