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13961829 = 37664849
BaseRepresentation
bin110101010000…
…101001100101
3222021100000210
4311100221211
512033234304
61215130033
7226450020
oct65205145
928240023
1013961829
117976802
124813919
132b7ac4b
141bd61b7
15135bc89
hexd50a65

13961829 has 8 divisors (see below), whose sum is σ = 21275200. Its totient is φ = 7978176.

The previous prime is 13961809. The next prime is 13961861. The reversal of 13961829 is 92816931.

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

It is not a de Polignac number, because 13961829 - 212 = 13957733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13961809) 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 7 ways as a sum of consecutive naturals, for example, 332404 + ... + 332445.

It is an arithmetic number, because the mean of its divisors is an integer number (2659400).

Almost surely, 213961829 is an apocalyptic number.

It is an amenable number.

13961829 is a deficient number, since it is larger than the sum of its proper divisors (7313371).

13961829 is an equidigital number, since it uses as much as digits as its factorization.

13961829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664859.

The product of its digits is 23328, while the sum is 39.

The square root of 13961829 is about 3736.5530907509. The cubic root of 13961829 is about 240.7949852802.

The spelling of 13961829 in words is "thirteen million, nine hundred sixty-one thousand, eight hundred twenty-nine".

Divisors: 1 3 7 21 664849 1994547 4653943 13961829