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290164057 = 919931543
BaseRepresentation
bin10001010010111…
…000110101011001
3202012222212020221
4101102320311121
51043240222212
644443120041
710122232231
oct2122706531
9665885227
10290164057
11139876607
1281213021
1348165b11
142a772cc1
151a719807
hex114b8d59

290164057 has 4 divisors (see below), whose sum is σ = 290204800. Its totient is φ = 290123316.

The previous prime is 290164033. The next prime is 290164087. The reversal of 290164057 is 750461092.

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 290164057 - 211 = 290162009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290164087) 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, 6573 + ... + 24970.

It is an arithmetic number, because the mean of its divisors is an integer number (72551200).

Almost surely, 2290164057 is an apocalyptic number.

It is an amenable number.

290164057 is a deficient number, since it is larger than the sum of its proper divisors (40743).

290164057 is an equidigital number, since it uses as much as digits as its factorization.

290164057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40742.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 290164057 is about 17034.2025642529. The cubic root of 290164057 is about 662.0353885908.

The spelling of 290164057 in words is "two hundred ninety million, one hundred sixty-four thousand, fifty-seven".

Divisors: 1 9199 31543 290164057