Search a number
-
+
30232302012 = 22321176344197
BaseRepresentation
bin11100001001111111…
…000101000110111100
32220000221102001211100
4130021333011012330
5443403432131022
621515531053100
72120120220123
oct341177050674
986027361740
1030232302012
1111904389a70
125a388a1190
132b0a54c103
14166b238aba
15bbe2141ac
hex709fc51bc

30232302012 has 36 divisors (see below), whose sum is σ = 83367864216. Its totient is φ = 9161303520.

The previous prime is 30232302007. The next prime is 30232302031. The reversal of 30232302012 is 21020323203.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38171703 + ... + 38172494.

It is an arithmetic number, because the mean of its divisors is an integer number (2315774006).

Almost surely, 230232302012 is an apocalyptic number.

It is an amenable number.

30232302012 is an abundant number, since it is smaller than the sum of its proper divisors (53135562204).

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

30232302012 is a wasteful number, since it uses less digits than its factorization.

30232302012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76344218 (or 76344213 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30232302012 its reverse (21020323203), we get a palindrome (51252625215).

The spelling of 30232302012 in words is "thirty billion, two hundred thirty-two million, three hundred two thousand, twelve".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 76344197 152688394 229032591 305376788 458065182 687097773 839786167 916130364 1374195546 1679572334 2519358501 2748391092 3359144668 5038717002 7558075503 10077434004 15116151006 30232302012