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57238653 = 319079551
BaseRepresentation
bin1101101001011…
…0010001111101
310222201000200010
43122112101331
5104123114103
65402453433
71263343353
oct332262175
9128630603
1057238653
112a34527a
1217204279
13bb21134
14785d7d3
155059903
hex369647d

57238653 has 4 divisors (see below), whose sum is σ = 76318208. Its totient is φ = 38159100.

The previous prime is 57238631. The next prime is 57238661. The reversal of 57238653 is 35683275.

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 57238653 - 210 = 57237629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57238613) 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, 9539773 + ... + 9539778.

It is an arithmetic number, because the mean of its divisors is an integer number (19079552).

Almost surely, 257238653 is an apocalyptic number.

It is an amenable number.

57238653 is a deficient number, since it is larger than the sum of its proper divisors (19079555).

57238653 is a wasteful number, since it uses less digits than its factorization.

57238653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19079554.

The product of its digits is 151200, while the sum is 39.

The square root of 57238653 is about 7565.6231071869. The cubic root of 57238653 is about 385.3864742313.

The spelling of 57238653 in words is "fifty-seven million, two hundred thirty-eight thousand, six hundred fifty-three".

Divisors: 1 3 19079551 57238653