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2257704253 = 7255782721
BaseRepresentation
bin1000011010010001…
…1101010100111101
312211100021021000001
42012210131110331
514110433014003
61012010234301
7106643112100
oct20644352475
95740237001
102257704253
11a59462692
12530125991
1329c98669c
14175bbc737
15d331961d
hex8691d53d

2257704253 has 12 divisors (see below), whose sum is σ = 2631055932. Its totient is φ = 1931677440.

The previous prime is 2257704223. The next prime is 2257704269. The reversal of 2257704253 is 3524077522.

2257704253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 259435449 + 1998268804 = 16107^2 + 44702^2 .

It is not a de Polignac number, because 2257704253 - 29 = 2257703741 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 (2257704223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14068 + ... + 68653.

It is an arithmetic number, because the mean of its divisors is an integer number (219254661).

Almost surely, 22257704253 is an apocalyptic number.

It is an amenable number.

2257704253 is a deficient number, since it is larger than the sum of its proper divisors (373351679).

2257704253 is an equidigital number, since it uses as much as digits as its factorization.

2257704253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83292 (or 83285 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 37.

The square root of 2257704253 is about 47515.3054604514. The cubic root of 2257704253 is about 1311.8646121589.

The spelling of 2257704253 in words is "two billion, two hundred fifty-seven million, seven hundred four thousand, two hundred fifty-three".

Divisors: 1 7 49 557 3899 27293 82721 579047 4053329 46075597 322529179 2257704253