Search a number
-
+
13131892 = 223788729
BaseRepresentation
bin110010000110…
…000001110100
3220201011120101
4302012001310
511330210032
61145243444
7216422254
oct62060164
926634511
1013131892
11745a204
124493584
13294a267
141a5b964
151245de7
hexc86074

13131892 has 12 divisors (see below), whose sum is σ = 23602180. Its totient is φ = 6388416.

The previous prime is 13131883. The next prime is 13131901. The reversal of 13131892 is 29813131.

It is an interprime number because it is at equal distance from previous prime (13131883) and next prime (13131901).

It can be written as a sum of positive squares in 2 ways, for example, as 7001316 + 6130576 = 2646^2 + 2476^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13131892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44217 + ... + 44512.

Almost surely, 213131892 is an apocalyptic number.

It is an amenable number.

13131892 is a deficient number, since it is larger than the sum of its proper divisors (10470288).

13131892 is a wasteful number, since it uses less digits than its factorization.

13131892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88770 (or 88768 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 13131892 is about 3623.7952480790. The cubic root of 13131892 is about 235.9259798507.

It can be divided in two parts, 131 and 31892, that added together give a palindrome (32023).

The spelling of 13131892 in words is "thirteen million, one hundred thirty-one thousand, eight hundred ninety-two".

Divisors: 1 2 4 37 74 148 88729 177458 354916 3282973 6565946 13131892