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2257057 = 11205187
BaseRepresentation
bin1000100111000010100001
311020200002201
420213002201
51034211212
6120213201
725120225
oct10470241
94220081
102257057
111301840
1290a201
1361044a
1442a785
152e8b57
hex2270a1

2257057 has 4 divisors (see below), whose sum is σ = 2462256. Its totient is φ = 2051860.

The previous prime is 2257051. The next prime is 2257069. The reversal of 2257057 is 7507522.

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 2257057 - 23 = 2257049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2257051) 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, 102583 + ... + 102604.

It is an arithmetic number, because the mean of its divisors is an integer number (615564).

22257057 is an apocalyptic number.

It is an amenable number.

2257057 is a deficient number, since it is larger than the sum of its proper divisors (205199).

2257057 is a wasteful number, since it uses less digits than its factorization.

2257057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205198.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 2257057 is about 1502.3504917295. The cubic root of 2257057 is about 131.1739235616.

The spelling of 2257057 in words is "two million, two hundred fifty-seven thousand, fifty-seven".

Divisors: 1 11 205187 2257057