Search a number
-
+
13256844 = 2231104737
BaseRepresentation
bin110010100100…
…100010001100
3220221111222020
4302210202030
511343204334
61152050140
7220452456
oct62444214
926844866
1013256844
117535077
124533950
1329920b3
141a912d6
15126ce49
hexca488c

13256844 has 12 divisors (see below), whose sum is σ = 30932664. Its totient is φ = 4418944.

The previous prime is 13256839. The next prime is 13256849. The reversal of 13256844 is 44865231.

It is an interprime number because it is at equal distance from previous prime (13256839) and next prime (13256849).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (13256849) 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, 552357 + ... + 552380.

It is an arithmetic number, because the mean of its divisors is an integer number (2577722).

Almost surely, 213256844 is an apocalyptic number.

It is an amenable number.

13256844 is an abundant number, since it is smaller than the sum of its proper divisors (17675820).

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

13256844 is a wasteful number, since it uses less digits than its factorization.

13256844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104744 (or 1104742 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 13256844 is about 3640.9949189748. The cubic root of 13256844 is about 236.6719097783.

The spelling of 13256844 in words is "thirteen million, two hundred fifty-six thousand, eight hundred forty-four".

Divisors: 1 2 3 4 6 12 1104737 2209474 3314211 4418948 6628422 13256844