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13812008 = 237246643
BaseRepresentation
bin110100101100…
…000100101000
3221222201111212
4310230010220
512013441013
61212012252
7225254150
oct64540450
927881455
1013812008
117884191
124761088
132b279b2
141b97760
15132c6a8
hexd2c128

13812008 has 16 divisors (see below), whose sum is σ = 29597280. Its totient is φ = 5919408.

The previous prime is 13811977. The next prime is 13812011. The reversal of 13812008 is 80021831.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123266 + ... + 123377.

It is an arithmetic number, because the mean of its divisors is an integer number (1849830).

Almost surely, 213812008 is an apocalyptic number.

It is an amenable number.

13812008 is an abundant number, since it is smaller than the sum of its proper divisors (15785272).

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

13812008 is a wasteful number, since it uses less digits than its factorization.

13812008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246656 (or 246652 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 13812008 is about 3716.4509952373. The cubic root of 13812008 is about 239.9305817751.

Adding to 13812008 its reverse (80021831), we get a palindrome (93833839).

The spelling of 13812008 in words is "thirteen million, eight hundred twelve thousand, eight".

Divisors: 1 2 4 7 8 14 28 56 246643 493286 986572 1726501 1973144 3453002 6906004 13812008