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57415389 = 329659947
BaseRepresentation
bin1101101100000…
…1011011011101
311000001000002220
43123001123131
5104144243024
65410335553
71265010543
oct333013335
9130030086
1057415389
112a456039
121728a5b9
13bb83705
1478a7d93
155091e79
hex36c16dd

57415389 has 8 divisors (see below), whose sum is σ = 79193760. Its totient is φ = 36956976.

The previous prime is 57415373. The next prime is 57415403. The reversal of 57415389 is 98351475.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57415389 - 24 = 57415373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57415389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57415339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329887 + ... + 330060.

It is an arithmetic number, because the mean of its divisors is an integer number (9899220).

Almost surely, 257415389 is an apocalyptic number.

It is an amenable number.

57415389 is a deficient number, since it is larger than the sum of its proper divisors (21778371).

57415389 is a wasteful number, since it uses less digits than its factorization.

57415389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659979.

The product of its digits is 151200, while the sum is 42.

The square root of 57415389 is about 7577.2943060172. The cubic root of 57415389 is about 385.7827197604.

The spelling of 57415389 in words is "fifty-seven million, four hundred fifteen thousand, three hundred eighty-nine".

Divisors: 1 3 29 87 659947 1979841 19138463 57415389