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13974807 = 371160497
BaseRepresentation
bin110101010011…
…110100010111
3222021222211110
4311103310113
512034143212
61215310103
7226532610
oct65236427
928258743
1013974807
117985530
12481b333
132b83b22
141bdac07
151360a3c
hexd53d17

13974807 has 16 divisors (see below), whose sum is σ = 23231232. Its totient is φ = 7259520.

The previous prime is 13974803. The next prime is 13974827. The reversal of 13974807 is 70847931.

It is not a de Polignac number, because 13974807 - 22 = 13974803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13974803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30018 + ... + 30479.

It is an arithmetic number, because the mean of its divisors is an integer number (1451952).

Almost surely, 213974807 is an apocalyptic number.

13974807 is a deficient number, since it is larger than the sum of its proper divisors (9256425).

13974807 is a wasteful number, since it uses less digits than its factorization.

13974807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60518.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 13974807 is about 3738.2893146465. The cubic root of 13974807 is about 240.8695712470.

The spelling of 13974807 in words is "thirteen million, nine hundred seventy-four thousand, eight hundred seven".

Divisors: 1 3 7 11 21 33 77 231 60497 181491 423479 665467 1270437 1996401 4658269 13974807