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12912814 = 243532833
BaseRepresentation
bin110001010000…
…100010101110
3220022001001101
4301100202232
511301202224
61140433314
7214520455
oct61204256
926261041
1012912814
11731a652
1243a883a
1328a1625
141a01b9c
151201044
hexc508ae

12912814 has 16 divisors (see below), whose sum is σ = 20200752. Its totient is φ = 6185088.

The previous prime is 12912773. The next prime is 12912847. The reversal of 12912814 is 41821921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3142 + ... + 5974.

It is an arithmetic number, because the mean of its divisors is an integer number (1262547).

Almost surely, 212912814 is an apocalyptic number.

12912814 is a deficient number, since it is larger than the sum of its proper divisors (7287938).

12912814 is a wasteful number, since it uses less digits than its factorization.

12912814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931.

The product of its digits is 1152, while the sum is 28.

The square root of 12912814 is about 3593.4404127521. The cubic root of 12912814 is about 234.6066393504.

The spelling of 12912814 in words is "twelve million, nine hundred twelve thousand, eight hundred fourteen".

Divisors: 1 2 43 53 86 106 2279 2833 4558 5666 121819 150149 243638 300298 6456407 12912814