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57494615040 = 2103251518263
BaseRepresentation
bin110101100010111100…
…100011010000000000
312111101220021001200200
4311202330203100000
51420222110140130
642225045045200
74103525110242
oct654274432000
9174356231620
1057494615040
1122424236285
12b1869b6800
135563693995
142ad5c40092
151767811760
hexd62f23400

57494615040 has 264 divisors, whose sum is σ = 200560933248. Its totient is φ = 15228518400.

The previous prime is 57494614979. The next prime is 57494615041. The reversal of 57494615040 is 4051649475.

57494615040 is a `hidden beast` number, since 5 + 7 + 494 + 6 + 150 + 4 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57494615041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6953949 + ... + 6962211.

Almost surely, 257494615040 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 57494615040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100280466624).

57494615040 is an abundant number, since it is smaller than the sum of its proper divisors (143066318208).

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

57494615040 is a wasteful number, since it uses less digits than its factorization.

57494615040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8445 (or 8424 counting only the distinct ones).

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

The spelling of 57494615040 in words is "fifty-seven billion, four hundred ninety-four million, six hundred fifteen thousand, forty".