Search a number
-
+
13125186 = 233892731
BaseRepresentation
bin110010000100…
…011001000010
3220200211101000
4302010121002
511330001221
61145152430
7216363564
oct62043102
926624330
1013125186
117455168
12448b716
1329471a9
141a59334
151243e26
hexc84642

13125186 has 32 divisors (see below), whose sum is σ = 29505600. Its totient is φ = 4324320.

The previous prime is 13125179. The next prime is 13125193. The reversal of 13125186 is 68152131.

It is an interprime number because it is at equal distance from previous prime (13125179) and next prime (13125193).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3441 + ... + 6171.

It is an arithmetic number, because the mean of its divisors is an integer number (922050).

Almost surely, 213125186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13125186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14752800).

13125186 is an abundant number, since it is smaller than the sum of its proper divisors (16380414).

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

13125186 is a wasteful number, since it uses less digits than its factorization.

13125186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831 (or 2825 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 13125186 is about 3622.8698568952. The cubic root of 13125186 is about 235.8858132850.

The spelling of 13125186 in words is "thirteen million, one hundred twenty-five thousand, one hundred eighty-six".

Divisors: 1 2 3 6 9 18 27 54 89 178 267 534 801 1602 2403 2731 4806 5462 8193 16386 24579 49158 73737 147474 243059 486118 729177 1458354 2187531 4375062 6562593 13125186