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12630679 = 73173023
BaseRepresentation
bin110000001011…
…101010010111
3212202201000221
4300023222113
511213140204
61130415211
7212234065
oct60135227
925681027
1012630679
117147686
124291507
132803099
14196b035
151197654
hexc0ba97

12630679 has 4 divisors (see below), whose sum is σ = 12803776. Its totient is φ = 12457584.

The previous prime is 12630647. The next prime is 12630701. The reversal of 12630679 is 97603621.

12630679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97603621 = 725313457.

It is a cyclic number.

It is not a de Polignac number, because 12630679 - 25 = 12630647 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 (12630619) 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, 86439 + ... + 86584.

It is an arithmetic number, because the mean of its divisors is an integer number (3200944).

Almost surely, 212630679 is an apocalyptic number.

12630679 is a deficient number, since it is larger than the sum of its proper divisors (173097).

12630679 is an equidigital number, since it uses as much as digits as its factorization.

12630679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173096.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 12630679 is about 3553.9666571312. The cubic root of 12630679 is about 232.8853838951.

The spelling of 12630679 in words is "twelve million, six hundred thirty thousand, six hundred seventy-nine".

Divisors: 1 73 173023 12630679