Search a number
-
+
30525612 = 22313195677
BaseRepresentation
bin111010001110…
…0100010101100
32010102212021020
41310130202230
530303304422
63010134140
7520314645
oct164344254
963385236
1030525612
111625a387
12a281350
13642a2c0
1440a86cc
152a2e95c
hex1d1c8ac

30525612 has 24 divisors (see below), whose sum is σ = 76705776. Its totient is φ = 9392448.

The previous prime is 30525587. The next prime is 30525613. The reversal of 30525612 is 21652503.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (30525613) 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, 97683 + ... + 97994.

It is an arithmetic number, because the mean of its divisors is an integer number (3196074).

Almost surely, 230525612 is an apocalyptic number.

It is an amenable number.

30525612 is an abundant number, since it is smaller than the sum of its proper divisors (46180164).

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

30525612 is a wasteful number, since it uses less digits than its factorization.

30525612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195697 (or 195695 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 30525612 is about 5524.9988235293. The cubic root of 30525612 is about 312.5274198873.

The spelling of 30525612 in words is "thirty million, five hundred twenty-five thousand, six hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 195677 391354 587031 782708 1174062 2348124 2543801 5087602 7631403 10175204 15262806 30525612