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12641948 = 22111716901
BaseRepresentation
bin110000001110…
…011010011100
3212210021111022
4300032122130
511214020243
61130543312
7212311664
oct60163234
925707438
1012641948
1171550a0
124297b38
132808257
1419711a4
15119ab68
hexc0e69c

12641948 has 24 divisors (see below), whose sum is σ = 25555824. Its totient is φ = 5408000.

The previous prime is 12641917. The next prime is 12641963. The reversal of 12641948 is 84914621.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 7703 + ... + 9198.

It is an arithmetic number, because the mean of its divisors is an integer number (1064826).

Almost surely, 212641948 is an apocalyptic number.

It is an amenable number.

12641948 is an abundant number, since it is smaller than the sum of its proper divisors (12913876).

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

12641948 is a wasteful number, since it uses less digits than its factorization.

12641948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16933 (or 16931 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 12641948 is about 3555.5517152757. The cubic root of 12641948 is about 232.9546228566.

The spelling of 12641948 in words is "twelve million, six hundred forty-one thousand, nine hundred forty-eight".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 16901 33802 67604 185911 287317 371822 574634 743644 1149268 3160487 6320974 12641948