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13714561 = 721914731
BaseRepresentation
bin110100010100…
…010010000001
3221210202211201
4310110102001
512002331221
61205541201
7224400100
oct64242201
927722751
1013714561
117817a53
124714801
132ac2533
141b70037
15130d891
hexd14481

13714561 has 12 divisors (see below), whose sum is σ = 16794480. Its totient is φ = 11135880.

The previous prime is 13714559. The next prime is 13714567. The reversal of 13714561 is 16541731.

13714561 = T665 + T666 + ... + T721.

It is not a de Polignac number, because 13714561 - 21 = 13714559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13714567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6435 + ... + 8296.

It is an arithmetic number, because the mean of its divisors is an integer number (1399540).

Almost surely, 213714561 is an apocalyptic number.

It is an amenable number.

13714561 is a deficient number, since it is larger than the sum of its proper divisors (3079919).

13714561 is a wasteful number, since it uses less digits than its factorization.

13714561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14764 (or 14757 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 13714561 is about 3703.3175667231. The cubic root of 13714561 is about 239.3649937985.

The spelling of 13714561 in words is "thirteen million, seven hundred fourteen thousand, five hundred sixty-one".

Divisors: 1 7 19 49 133 931 14731 103117 279889 721819 1959223 13714561