Search a number
-
+
13806474 = 2311209189
BaseRepresentation
bin110100101010…
…101110001010
3221222102220220
4310222232022
512013301344
61211530510
7225232053
oct64525612
927872826
1013806474
117880010
124759a36
132b25316
141b9572a
15132ac19
hexd2ab8a

13806474 has 16 divisors (see below), whose sum is σ = 30123360. Its totient is φ = 4183760.

The previous prime is 13806473. The next prime is 13806487. The reversal of 13806474 is 47460831.

13806474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (13806473) 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, 104529 + ... + 104660.

It is an arithmetic number, because the mean of its divisors is an integer number (1882710).

Almost surely, 213806474 is an apocalyptic number.

13806474 is an abundant number, since it is smaller than the sum of its proper divisors (16316886).

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

13806474 is a wasteful number, since it uses less digits than its factorization.

13806474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209205.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 13806474 is about 3715.7063931371. The cubic root of 13806474 is about 239.8985334972.

The spelling of 13806474 in words is "thirteen million, eight hundred six thousand, four hundred seventy-four".

Divisors: 1 2 3 6 11 22 33 66 209189 418378 627567 1255134 2301079 4602158 6903237 13806474