Search a number
-
+
13967860 = 225698393
BaseRepresentation
bin110101010010…
…000111110100
3222021122022011
4311102013310
512033432420
61215214004
7226503424
oct65220764
928248264
1013967860
117980295
124817304
132b8090a
141bd8484
15135d95a
hexd521f4

13967860 has 12 divisors (see below), whose sum is σ = 29332548. Its totient is φ = 5587136.

The previous prime is 13967827. The next prime is 13967867. The reversal of 13967860 is 6876931.

13967860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1731856 + 12236004 = 1316^2 + 3498^2 .

It is a super-2 number, since 2×139678602 = 390202225959200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13967867) 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, 349177 + ... + 349216.

It is an arithmetic number, because the mean of its divisors is an integer number (2444379).

Almost surely, 213967860 is an apocalyptic number.

13967860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13967860 is an abundant number, since it is smaller than the sum of its proper divisors (15364688).

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

13967860 is a wasteful number, since it uses less digits than its factorization.

13967860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698402 (or 698400 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 13967860 is about 3737.3600308239. The cubic root of 13967860 is about 240.8296518343.

The spelling of 13967860 in words is "thirteen million, nine hundred sixty-seven thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 698393 1396786 2793572 3491965 6983930 13967860