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57080207968 = 2571953594289
BaseRepresentation
bin110101001010001111…
…101101101001100000
312110100000111000001121
4311022033231221200
51413400013123333
642120002542024
74060333522330
oct651217555140
9173300430047
1057080207968
11222313200a3
12b090067914
1354c88798b4
142a96ba90c0
15174125432d
hexd4a3eda60

57080207968 has 192 divisors, whose sum is σ = 140107968000. Its totient is φ = 22347546624.

The previous prime is 57080207959. The next prime is 57080207993. The reversal of 57080207968 is 86970208075.

57080207968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13306368 + ... + 13310656.

It is an arithmetic number, because the mean of its divisors is an integer number (729729000).

Almost surely, 257080207968 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 57080207968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70053984000).

57080207968 is an abundant number, since it is smaller than the sum of its proper divisors (83027760032).

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

57080207968 is a wasteful number, since it uses less digits than its factorization.

57080207968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437 (or 4429 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 57080207968 in words is "fifty-seven billion, eighty million, two hundred seven thousand, nine hundred sixty-eight".