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20314917 = 327322459
BaseRepresentation
bin100110101111…
…1101100100101
31102020002211100
41031133230211
520200034132
62003230313
7334450110
oct115375445
942202740
1020314917
1110515997
126978399
13429387c
1429ab577
151bb437c
hex135fb25

20314917 has 12 divisors (see below), whose sum is σ = 33535840. Its totient is φ = 11608488.

The previous prime is 20314907. The next prime is 20314919. The reversal of 20314917 is 71941302.

It is not a de Polignac number, because 20314917 - 211 = 20312869 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 (20314919) 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, 161167 + ... + 161292.

Almost surely, 220314917 is an apocalyptic number.

It is an amenable number.

20314917 is a deficient number, since it is larger than the sum of its proper divisors (13220923).

20314917 is a wasteful number, since it uses less digits than its factorization.

20314917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322472 (or 322469 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 20314917 is about 4507.2072284287. The cubic root of 20314917 is about 272.8590424760.

The spelling of 20314917 in words is "twenty million, three hundred fourteen thousand, nine hundred seventeen".

Divisors: 1 3 7 9 21 63 322459 967377 2257213 2902131 6771639 20314917