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8112457 = 13958363
BaseRepresentation
bin11110111100100101001001
3120021011012101
4132330211021
54034044312
6445513401
7125645323
oct36744511
916234171
108112457
114641011
122872861
1318b0692
141112613
15aa3a57
hex7bc949

8112457 has 4 divisors (see below), whose sum is σ = 8170960. Its totient is φ = 8053956.

The previous prime is 8112443. The next prime is 8112463. The reversal of 8112457 is 7542118.

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 8112457 - 211 = 8110409 is a prime.

It is a Duffinian number.

8112457 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8112407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29043 + ... + 29320.

It is an arithmetic number, because the mean of its divisors is an integer number (2042740).

Almost surely, 28112457 is an apocalyptic number.

It is an amenable number.

8112457 is a deficient number, since it is larger than the sum of its proper divisors (58503).

8112457 is a wasteful number, since it uses less digits than its factorization.

8112457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58502.

The product of its digits is 2240, while the sum is 28.

The square root of 8112457 is about 2848.2375252075. The cubic root of 8112457 is about 200.9327844690.

The spelling of 8112457 in words is "eight million, one hundred twelve thousand, four hundred fifty-seven".

Divisors: 1 139 58363 8112457