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13961345 = 523121403
BaseRepresentation
bin110101010000…
…100010000001
3222021022100212
4311100202001
512033230340
61215123505
7226445426
oct65204201
928238325
1013961345
117976402
124813595
132b7a968
141bd5d4d
15135ba65
hexd50881

13961345 has 8 divisors (see below), whose sum is σ = 17482176. Its totient is φ = 10683376.

The previous prime is 13961329. The next prime is 13961357. The reversal of 13961345 is 54316931.

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

It is a cyclic number.

It is not a de Polignac number, because 13961345 - 24 = 13961329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60587 + ... + 60816.

It is an arithmetic number, because the mean of its divisors is an integer number (2185272).

Almost surely, 213961345 is an apocalyptic number.

It is an amenable number.

13961345 is a deficient number, since it is larger than the sum of its proper divisors (3520831).

13961345 is a wasteful number, since it uses less digits than its factorization.

13961345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121431.

The product of its digits is 9720, while the sum is 32.

The square root of 13961345 is about 3736.4883246171. The cubic root of 13961345 is about 240.7922027861.

The spelling of 13961345 in words is "thirteen million, nine hundred sixty-one thousand, three hundred forty-five".

Divisors: 1 5 23 115 121403 607015 2792269 13961345