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12906474 = 237487631
BaseRepresentation
bin110001001110…
…111111101010
3220021201100120
4301032333222
511301001344
61140344110
7214463130
oct61167752
926251316
1012906474
117315909
1243a5036
13289b789
1419dd750
1511ee219
hexc4efea

12906474 has 32 divisors (see below), whose sum is σ = 29607936. Its totient is φ = 3674160.

The previous prime is 12906463. The next prime is 12906497. The reversal of 12906474 is 47460921.

It is a happy number.

It is a super-2 number, since 2×129064742 = 333154142225352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20139 + ... + 20769.

It is an arithmetic number, because the mean of its divisors is an integer number (925248).

Almost surely, 212906474 is an apocalyptic number.

12906474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12906474 is an abundant number, since it is smaller than the sum of its proper divisors (16701462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12906474 is a wasteful number, since it uses less digits than its factorization.

12906474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 12906474 is about 3592.5581414919. The cubic root of 12906474 is about 234.5682369389.

The spelling of 12906474 in words is "twelve million, nine hundred six thousand, four hundred seventy-four".

Divisors: 1 2 3 6 7 14 21 42 487 631 974 1262 1461 1893 2922 3409 3786 4417 6818 8834 10227 13251 20454 26502 307297 614594 921891 1843782 2151079 4302158 6453237 12906474