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13973493 = 319245149
BaseRepresentation
bin110101010011…
…011111110101
3222021221000210
4311103133311
512034122433
61215300033
7226526022
oct65233765
928257023
1013973493
117984546
12481a619
132b83351
141bda549
151360463
hexd537f5

13973493 has 8 divisors (see below), whose sum is σ = 19612000. Its totient is φ = 8825328.

The previous prime is 13973483. The next prime is 13973527. The reversal of 13973493 is 39437931.

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

It is not a de Polignac number, because 13973493 - 25 = 13973461 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 (13973413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122518 + ... + 122631.

It is an arithmetic number, because the mean of its divisors is an integer number (2451500).

Almost surely, 213973493 is an apocalyptic number.

It is an amenable number.

13973493 is a deficient number, since it is larger than the sum of its proper divisors (5638507).

13973493 is a wasteful number, since it uses less digits than its factorization.

13973493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245171.

The product of its digits is 61236, while the sum is 39.

The square root of 13973493 is about 3738.1135616779. The cubic root of 13973493 is about 240.8620216487.

The spelling of 13973493 in words is "thirteen million, nine hundred seventy-three thousand, four hundred ninety-three".

Divisors: 1 3 19 57 245149 735447 4657831 13973493