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13812906 = 232302151
BaseRepresentation
bin110100101100…
…010010101010
3221222202202010
4310230102222
512014003111
61212020350
7225256602
oct64542252
927882663
1013812906
117884928
1247616b6
132b28223
141b97c02
15132caa6
hexd2c4aa

13812906 has 8 divisors (see below), whose sum is σ = 27625824. Its totient is φ = 4604300.

The previous prime is 13812863. The next prime is 13812907. The reversal of 13812906 is 60921831.

It is a sphenic number, since it is the product of 3 distinct primes.

13812906 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13812907) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1151070 + ... + 1151081.

It is an arithmetic number, because the mean of its divisors is an integer number (3453228).

Almost surely, 213812906 is an apocalyptic number.

13812906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13812906 is a wasteful number, since it uses less digits than its factorization.

13812906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302156.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 13812906 is about 3716.5718074591. The cubic root of 13812906 is about 239.9357814292.

The spelling of 13812906 in words is "thirteen million, eight hundred twelve thousand, nine hundred six".

Divisors: 1 2 3 6 2302151 4604302 6906453 13812906