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17894013 = 317220639
BaseRepresentation
bin100010001000…
…0101001111101
31020200002222020
41010100221331
514040102023
61435310353
7305045064
oct104205175
936602866
1017894013
11a112045
125bab3b9
133926997
14253b1db
151886de3
hex1110a7d

17894013 has 12 divisors (see below), whose sum is σ = 25345920. Its totient is φ = 11227072.

The previous prime is 17893987. The next prime is 17894017. The reversal of 17894013 is 31049871.

It is not a de Polignac number, because 17894013 - 26 = 17893949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17894017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9453 + ... + 11186.

It is an arithmetic number, because the mean of its divisors is an integer number (2112160).

Almost surely, 217894013 is an apocalyptic number.

It is an amenable number.

17894013 is a deficient number, since it is larger than the sum of its proper divisors (7451907).

17894013 is a wasteful number, since it uses less digits than its factorization.

17894013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20676 (or 20659 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 17894013 is about 4230.1315582379. The cubic root of 17894013 is about 261.5587477854.

The spelling of 17894013 in words is "seventeen million, eight hundred ninety-four thousand, thirteen".

Divisors: 1 3 17 51 289 867 20639 61917 350863 1052589 5964671 17894013