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189057053 = 293964327
BaseRepresentation
bin10110100010011…
…00100000011101
3111011202002112002
423101030200131
5341344311203
630432052045
74453646513
oct1321144035
9434662462
10189057053
11977993a9
1253394025
13302254a3
141b1744b3
15118e6d88
hexb44c81d

189057053 has 4 divisors (see below), whose sum is σ = 189124320. Its totient is φ = 188989788.

The previous prime is 189057041. The next prime is 189057059. The reversal of 189057053 is 350750981.

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, and also an emirpimes, since its reverse is a distinct semiprime: 350750981 = 750107283.

It is a cyclic number.

It is not a de Polignac number, because 189057053 - 210 = 189056029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189056998 and 189057016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189057059) 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, 29225 + ... + 35102.

It is an arithmetic number, because the mean of its divisors is an integer number (47281080).

Almost surely, 2189057053 is an apocalyptic number.

It is an amenable number.

189057053 is a deficient number, since it is larger than the sum of its proper divisors (67267).

189057053 is an equidigital number, since it uses as much as digits as its factorization.

189057053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67266.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 189057053 is about 13749.8019258461. The cubic root of 189057053 is about 573.9370942406.

The spelling of 189057053 in words is "one hundred eighty-nine million, fifty-seven thousand, fifty-three".

Divisors: 1 2939 64327 189057053