Search a number
-
+
13927407 = 3131811973
BaseRepresentation
bin110101001000…
…001111101111
3222012120210220
4311020033233
512031134112
61214302423
7226244454
oct65101757
928176726
1013927407
11795295a
1247b7a13
132b68390
141bc782b
15135198c
hexd483ef

13927407 has 16 divisors (see below), whose sum is σ = 20119008. Its totient is φ = 8519040.

The previous prime is 13927391. The next prime is 13927409. The reversal of 13927407 is 70472931.

It is not a de Polignac number, because 13927407 - 24 = 13927391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13927409) 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, 6073 + ... + 8045.

It is an arithmetic number, because the mean of its divisors is an integer number (1257438).

Almost surely, 213927407 is an apocalyptic number.

13927407 is a deficient number, since it is larger than the sum of its proper divisors (6191601).

13927407 is a wasteful number, since it uses less digits than its factorization.

13927407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 13927407 is about 3731.9441314146. The cubic root of 13927407 is about 240.5969341978.

The spelling of 13927407 in words is "thirteen million, nine hundred twenty-seven thousand, four hundred seven".

Divisors: 1 3 13 39 181 543 1973 2353 5919 7059 25649 76947 357113 1071339 4642469 13927407