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12534497 = 31739541
BaseRepresentation
bin101111110100…
…001011100001
3212120211002122
4233310023201
511202100442
61124354025
7211353503
oct57641341
925524078
1012534497
117091398
124245915
13279b381
141943d73
151178dd2
hexbf42e1

12534497 has 4 divisors (see below), whose sum is σ = 12574356. Its totient is φ = 12494640.

The previous prime is 12534461. The next prime is 12534523. The reversal of 12534497 is 79443521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 312481 + 12222016 = 559^2 + 3496^2 .

It is a cyclic number.

It is not a de Polignac number, because 12534497 - 220 = 11485921 is a prime.

It is a super-2 number, since 2×125344972 = 314227230086018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12504497) 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, 19454 + ... + 20087.

It is an arithmetic number, because the mean of its divisors is an integer number (3143589).

Almost surely, 212534497 is an apocalyptic number.

It is an amenable number.

12534497 is a deficient number, since it is larger than the sum of its proper divisors (39859).

12534497 is an equidigital number, since it uses as much as digits as its factorization.

12534497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39858.

The product of its digits is 30240, while the sum is 35.

The square root of 12534497 is about 3540.4091571455. The cubic root of 12534497 is about 232.2927401033.

It can be divided in two parts, 12534 and 497, that added together give a palindrome (13031).

The spelling of 12534497 in words is "twelve million, five hundred thirty-four thousand, four hundred ninety-seven".

Divisors: 1 317 39541 12534497