Search a number
-
+
13915480 = 235347887
BaseRepresentation
bin110101000101…
…010101011000
3222011222110011
4311011111120
512030243410
61214131304
7226164625
oct65052530
928158404
1013915480
1179449a7
1247b0b34
132b62b17
141bc334c
15134d18a
hexd45558

13915480 has 16 divisors (see below), whose sum is σ = 31309920. Its totient is φ = 5566176.

The previous prime is 13915471. The next prime is 13915487. The reversal of 13915480 is 8451931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13915487) 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 3 ways as a sum of consecutive naturals, for example, 173904 + ... + 173983.

It is an arithmetic number, because the mean of its divisors is an integer number (1956870).

Almost surely, 213915480 is an apocalyptic number.

13915480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13915480 is an abundant number, since it is smaller than the sum of its proper divisors (17394440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13915480 is a wasteful number, since it uses less digits than its factorization.

13915480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347898 (or 347894 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 13915480 is about 3730.3458284722. The cubic root of 13915480 is about 240.5282346624.

The spelling of 13915480 in words is "thirteen million, nine hundred fifteen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 347887 695774 1391548 1739435 2783096 3478870 6957740 13915480