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12670613 = 37342449
BaseRepresentation
bin110000010101…
…011010010101
3212211201210222
4300111122111
511220424423
61131324125
7212461364
oct60253225
925751728
1012670613
11717468a
1242b0645
132818307
14197b7db
1511a43c8
hexc15695

12670613 has 4 divisors (see below), whose sum is σ = 13013100. Its totient is φ = 12328128.

The previous prime is 12670607. The next prime is 12670621. The reversal of 12670613 is 31607621.

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 5579044 + 7091569 = 2362^2 + 2663^2 .

It is a cyclic number.

It is not a de Polignac number, because 12670613 - 24 = 12670597 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 (12670673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171188 + ... + 171261.

It is an arithmetic number, because the mean of its divisors is an integer number (3253275).

Almost surely, 212670613 is an apocalyptic number.

It is an amenable number.

12670613 is a deficient number, since it is larger than the sum of its proper divisors (342487).

12670613 is an equidigital number, since it uses as much as digits as its factorization.

12670613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342486.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 12670613 is about 3559.5804528062. The cubic root of 12670613 is about 233.1305610252.

The spelling of 12670613 in words is "twelve million, six hundred seventy thousand, six hundred thirteen".

Divisors: 1 37 342449 12670613