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57394497 = 3193133217
BaseRepresentation
bin1101101011110…
…0010101000001
310222222221110010
43122330111001
5104143110442
65410055133
71264562616
oct332742501
9128887403
1057394497
112a441376
121727a4a9
13bb77054
1478a050d
15508ab9c
hex36bc541

57394497 has 16 divisors (see below), whose sum is σ = 80836160. Its totient is φ = 36122112.

The previous prime is 57394489. The next prime is 57394501. The reversal of 57394497 is 79449375.

It is a happy number.

57394497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57394497 - 23 = 57394489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57394427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16233 + ... + 19449.

It is an arithmetic number, because the mean of its divisors is an integer number (5052260).

Almost surely, 257394497 is an apocalyptic number.

57394497 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

57394497 is a deficient number, since it is larger than the sum of its proper divisors (23441663).

57394497 is a wasteful number, since it uses less digits than its factorization.

57394497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552.

The product of its digits is 952560, while the sum is 48.

The square root of 57394497 is about 7575.9155882309. The cubic root of 57394497 is about 385.7359219100.

The spelling of 57394497 in words is "fifty-seven million, three hundred ninety-four thousand, four hundred ninety-seven".

Divisors: 1 3 19 57 313 939 3217 5947 9651 17841 61123 183369 1006921 3020763 19131499 57394497