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57898693 = 379152767
BaseRepresentation
bin1101110011011…
…1011011000101
311000221120002001
43130313123011
5104310224233
65424545301
71302062566
oct334673305
9130846061
1057898693
112a756166
1217482231
13bcc26a8
14799216d
15513a27d
hex37376c5

57898693 has 4 divisors (see below), whose sum is σ = 58051840. Its totient is φ = 57745548.

The previous prime is 57898679. The next prime is 57898697. The reversal of 57898693 is 39689875.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 57898693 - 217 = 57767621 is a prime.

It is a super-2 number, since 2×578986932 = 6704517302216498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57898697) 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, 76005 + ... + 76762.

It is an arithmetic number, because the mean of its divisors is an integer number (14512960).

Almost surely, 257898693 is an apocalyptic number.

It is an amenable number.

57898693 is a deficient number, since it is larger than the sum of its proper divisors (153147).

57898693 is a wasteful number, since it uses less digits than its factorization.

57898693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153146.

The product of its digits is 3265920, while the sum is 55.

The square root of 57898693 is about 7609.1190685913. The cubic root of 57898693 is about 386.8621609369.

The spelling of 57898693 in words is "fifty-seven million, eight hundred ninety-eight thousand, six hundred ninety-three".

Divisors: 1 379 152767 57898693