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13658423 = 113120871
BaseRepresentation
bin110100000110…
…100100110111
3221200220211112
4310012210313
511444032143
61204425235
7224044322
oct64064467
927626745
1013658423
117789859
1246a821b
132aa2b0c
141b577b9
1512ebe18
hexd06937

13658423 has 4 divisors (see below), whose sum is σ = 13779408. Its totient is φ = 13537440.

The previous prime is 13658413. The next prime is 13658431. The reversal of 13658423 is 32485631.

13658423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13658423 - 212 = 13654327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13658423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13658413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60323 + ... + 60548.

It is an arithmetic number, because the mean of its divisors is an integer number (3444852).

Almost surely, 213658423 is an apocalyptic number.

13658423 is a deficient number, since it is larger than the sum of its proper divisors (120985).

13658423 is a wasteful number, since it uses less digits than its factorization.

13658423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120984.

The product of its digits is 17280, while the sum is 32.

The square root of 13658423 is about 3695.7303743645. The cubic root of 13658423 is about 239.0379484918.

The spelling of 13658423 in words is "thirteen million, six hundred fifty-eight thousand, four hundred twenty-three".

Divisors: 1 113 120871 13658423