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12675990 = 2352318371
BaseRepresentation
bin110000010110…
…101110010110
3212212000012010
4300112232112
511221112430
61131405050
7212513145
oct60265626
925760163
1012675990
117178728
1242b3786
13281a8b2
14197d75c
1511a5cb0
hexc16b96

12675990 has 32 divisors (see below), whose sum is σ = 31746816. Its totient is φ = 3233120.

The previous prime is 12675979. The next prime is 12675991. The reversal of 12675990 is 9957621.

12675990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12675991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8496 + ... + 9875.

It is an arithmetic number, because the mean of its divisors is an integer number (992088).

Almost surely, 212675990 is an apocalyptic number.

12675990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12675990 is an abundant number, since it is smaller than the sum of its proper divisors (19070826).

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

12675990 is a wasteful number, since it uses less digits than its factorization.

12675990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18404.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 12675990 is about 3560.3356583334. The cubic root of 12675990 is about 233.1635340615.

The spelling of 12675990 in words is "twelve million, six hundred seventy-five thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 18371 36742 55113 91855 110226 183710 275565 422533 551130 845066 1267599 2112665 2535198 4225330 6337995 12675990