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57980365 = 511596073
BaseRepresentation
bin1101110100101…
…1010111001101
311001002201002221
43131023113031
5104320332430
65430415341
71302552652
oct335132715
9131081087
1057980365
112a801563
1217501551
13c020911
1479b3c29
15515457a
hex374b5cd

57980365 has 4 divisors (see below), whose sum is σ = 69576444. Its totient is φ = 46384288.

The previous prime is 57980341. The next prime is 57980389. The reversal of 57980365 is 56308975.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (57980341) and next prime (57980389).

It can be written as a sum of positive squares in 2 ways, for example, as 6456681 + 51523684 = 2541^2 + 7178^2 .

It is a cyclic number.

It is not a de Polignac number, because 57980365 - 25 = 57980333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5798032 + ... + 5798041.

It is an arithmetic number, because the mean of its divisors is an integer number (17394111).

Almost surely, 257980365 is an apocalyptic number.

It is an amenable number.

57980365 is a deficient number, since it is larger than the sum of its proper divisors (11596079).

57980365 is a wasteful number, since it uses less digits than its factorization.

57980365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11596078.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 57980365 is about 7614.4838958396. The cubic root of 57980365 is about 387.0439782920.

The spelling of 57980365 in words is "fifty-seven million, nine hundred eighty thousand, three hundred sixty-five".

Divisors: 1 5 11596073 57980365