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13961349 = 33517087
BaseRepresentation
bin110101010000…
…100010000101
3222021022101000
4311100202011
512033230344
61215123513
7226445433
oct65204205
928238330
1013961349
117976406
124813599
132b7a96c
141bd5d53
15135ba69
hexd50885

13961349 has 8 divisors (see below), whose sum is σ = 20683520. Its totient is φ = 9307548.

The previous prime is 13961329. The next prime is 13961357. The reversal of 13961349 is 94316931.

13961349 is a `hidden beast` number, since 1 + 39 + 613 + 4 + 9 = 666.

It is not a de Polignac number, because 13961349 - 215 = 13928581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13961329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258517 + ... + 258570.

It is an arithmetic number, because the mean of its divisors is an integer number (2585440).

Almost surely, 213961349 is an apocalyptic number.

It is an amenable number.

13961349 is a deficient number, since it is larger than the sum of its proper divisors (6722171).

13961349 is an equidigital number, since it uses as much as digits as its factorization.

13961349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517096 (or 517090 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 13961349 is about 3736.4888598790. The cubic root of 13961349 is about 240.7922257822.

The spelling of 13961349 in words is "thirteen million, nine hundred sixty-one thousand, three hundred forty-nine".

Divisors: 1 3 9 27 517087 1551261 4653783 13961349