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57998877120 = 26345192931131
BaseRepresentation
bin110110000001000000…
…001010000111000000
312112201001010020020000
4312001000022013000
51422240203031440
642351101120000
74122160215132
oct660100120700
9175631106200
1057998877120
11226629438a8
12b2a7859000
135613caba02
142b42bc5052
151796c1c730
hexd8100a1c0

57998877120 has 1120 divisors, whose sum is σ = 233676748800. Its totient is φ = 13586227200.

The previous prime is 57998877109. The next prime is 57998877121. The reversal of 57998877120 is 2177889975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57998877121) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 442739455 + ... + 442739585.

Almost surely, 257998877120 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 57998877120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116838374400).

57998877120 is an abundant number, since it is smaller than the sum of its proper divisors (175677871680).

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

57998877120 is a wasteful number, since it uses less digits than its factorization.

57998877120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 63.

The spelling of 57998877120 in words is "fifty-seven billion, nine hundred ninety-eight million, eight hundred seventy-seven thousand, one hundred twenty".