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10125857 = 71446551
BaseRepresentation
bin100110101000…
…001000100001
3201001110001202
4212220020201
510043011412
61001010545
7152032310
oct46501041
921043052
1010125857
115796785
123483a55
132136c41
1414b8277
15d503c2
hex9a8221

10125857 has 4 divisors (see below), whose sum is σ = 11572416. Its totient is φ = 8679300.

The previous prime is 10125853. The next prime is 10125881. The reversal of 10125857 is 75852101.

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 not a de Polignac number, because 10125857 - 22 = 10125853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10125853) 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, 723269 + ... + 723282.

It is an arithmetic number, because the mean of its divisors is an integer number (2893104).

Almost surely, 210125857 is an apocalyptic number.

It is an amenable number.

10125857 is a deficient number, since it is larger than the sum of its proper divisors (1446559).

10125857 is an equidigital number, since it uses as much as digits as its factorization.

10125857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446558.

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 10125857 is about 3182.1151770481. The cubic root of 10125857 is about 216.3435391165.

Adding to 10125857 its reverse (75852101), we get a palindrome (85977958).

The spelling of 10125857 in words is "ten million, one hundred twenty-five thousand, eight hundred fifty-seven".

Divisors: 1 7 1446551 10125857