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12650677 = 13973129
BaseRepresentation
bin110000010000…
…100010110101
3212210201110121
4300100202311
511214310202
61131051541
7212346304
oct60204265
925721417
1012650677
117160706
1242a0bb1
13280c210
14197443b
15119d537
hexc108b5

12650677 has 4 divisors (see below), whose sum is σ = 13623820. Its totient is φ = 11677536.

The previous prime is 12650657. The next prime is 12650711. The reversal of 12650677 is 77605621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77605621 = 531464257.

It can be written as a sum of positive squares in 2 ways, for example, as 5885476 + 6765201 = 2426^2 + 2601^2 .

It is a de Polignac number, because none of the positive numbers 2k-12650677 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 (12650657) 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, 486552 + ... + 486577.

It is an arithmetic number, because the mean of its divisors is an integer number (3405955).

Almost surely, 212650677 is an apocalyptic number.

It is an amenable number.

12650677 is a deficient number, since it is larger than the sum of its proper divisors (973143).

12650677 is an equidigital number, since it uses as much as digits as its factorization.

12650677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973142.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 12650677 is about 3556.7790204060. The cubic root of 12650677 is about 233.0082272817.

The spelling of 12650677 in words is "twelve million, six hundred fifty thousand, six hundred seventy-seven".

Divisors: 1 13 973129 12650677