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57989973 = 319329991
BaseRepresentation
bin1101110100110…
…1101101010101
311001010012021210
43131031231111
5104321134343
65430532033
71302622656
oct335155525
9131105253
1057989973
112a8087a8
1217507019
13c0250c2
1479b752d
155157333
hex374db55

57989973 has 4 divisors (see below), whose sum is σ = 77319968. Its totient is φ = 38659980.

The previous prime is 57989951. The next prime is 57989977. The reversal of 57989973 is 37998975.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 57989973 - 26 = 57989909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57989977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9664993 + ... + 9664998.

It is an arithmetic number, because the mean of its divisors is an integer number (19329992).

Almost surely, 257989973 is an apocalyptic number.

It is an amenable number.

57989973 is a deficient number, since it is larger than the sum of its proper divisors (19329995).

57989973 is a wasteful number, since it uses less digits than its factorization.

57989973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19329994.

The product of its digits is 4286520, while the sum is 57.

The square root of 57989973 is about 7615.1147726085. The cubic root of 57989973 is about 387.0653562944.

The spelling of 57989973 in words is "fifty-seven million, nine hundred eighty-nine thousand, nine hundred seventy-three".

Divisors: 1 3 19329991 57989973