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392187053 = 2317051611
BaseRepresentation
bin10111011000000…
…100110010101101
31000022222011111102
4113120010302231
51300344441203
6102525532445
712501351326
oct2730046255
91008864442
10392187053
11191419a35
12ab414125
136333735b
143a12d44d
152466d888
hex17604cad

392187053 has 4 divisors (see below), whose sum is σ = 409238688. Its totient is φ = 375135420.

The previous prime is 392187043. The next prime is 392187071. The reversal of 392187053 is 350781293.

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 392187053 - 26 = 392186989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 392186998 and 392187016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392187043) 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, 8525783 + ... + 8525828.

It is an arithmetic number, because the mean of its divisors is an integer number (102309672).

Almost surely, 2392187053 is an apocalyptic number.

It is an amenable number.

392187053 is a deficient number, since it is larger than the sum of its proper divisors (17051635).

392187053 is a wasteful number, since it uses less digits than its factorization.

392187053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17051634.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 392187053 is about 19803.7131114344. The cubic root of 392187053 is about 731.9775323561.

The spelling of 392187053 in words is "three hundred ninety-two million, one hundred eighty-seven thousand, fifty-three".

Divisors: 1 23 17051611 392187053