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11912976 = 243282729
BaseRepresentation
bin101101011100…
…011100010000
3211102020112100
4231130130100
511022203401
61103200400
7203154465
oct55343420
924366470
1011912976
1167a7439
123ba6100
1326114ca
14182166c
1510a4b86
hexb5c710

11912976 has 30 divisors (see below), whose sum is σ = 33340190. Its totient is φ = 3970944.

The previous prime is 11912947. The next prime is 11912993. The reversal of 11912976 is 67921911.

It can be written as a sum of positive squares in only one way, i.e., 9734400 + 2178576 = 3120^2 + 1476^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 11912976.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 41221 + ... + 41508.

Almost surely, 211912976 is an apocalyptic number.

11912976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11912976 is an abundant number, since it is smaller than the sum of its proper divisors (21427214).

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

11912976 is a wasteful number, since it uses less digits than its factorization.

11912976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82743 (or 82734 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 11912976 is about 3451.5179269417. The cubic root of 11912976 is about 228.3880740877.

The spelling of 11912976 in words is "eleven million, nine hundred twelve thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 82729 165458 248187 330916 496374 661832 744561 992748 1323664 1489122 1985496 2978244 3970992 5956488 11912976