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13712817 = 315672917
BaseRepresentation
bin110100010011…
…110110110001
3221210200110010
4310103312301
512002302232
61205525133
7224362026
oct64236661
927720403
1013712817
117816708
1247137a9
132ac17c1
141b6d54d
15130d0cc
hexd13db1

13712817 has 8 divisors (see below), whose sum is σ = 18301696. Its totient is φ = 9132912.

The previous prime is 13712801. The next prime is 13712821. The reversal of 13712817 is 71821731.

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

It is not a de Polignac number, because 13712817 - 24 = 13712801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13712837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3243 + ... + 6159.

It is an arithmetic number, because the mean of its divisors is an integer number (2287712).

Almost surely, 213712817 is an apocalyptic number.

It is an amenable number.

13712817 is a deficient number, since it is larger than the sum of its proper divisors (4588879).

13712817 is a wasteful number, since it uses less digits than its factorization.

13712817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487.

The product of its digits is 2352, while the sum is 30.

The square root of 13712817 is about 3703.0820946882. The cubic root of 13712817 is about 239.3548471560.

The spelling of 13712817 in words is "thirteen million, seven hundred twelve thousand, eight hundred seventeen".

Divisors: 1 3 1567 2917 4701 8751 4570939 13712817