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30313211124 = 2237360871561
BaseRepresentation
bin11100001110110011…
…101110010011110100
32220020120122200021010
4130032303232103310
5444040140223444
621531541152220
72122122020550
oct341663562364
986216580233
1030313211124
11119460211a9
125a5b9bb670
132b2123a221
141677c9a860
15bc63972b9
hex70ecee4f4

30313211124 has 24 divisors (see below), whose sum is σ = 80835229888. Its totient is φ = 8660917440.

The previous prime is 30313211111. The next prime is 30313211143. The reversal of 30313211124 is 42111231303.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 30313211124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180435697 + ... + 180435864.

Almost surely, 230313211124 is an apocalyptic number.

It is an amenable number.

30313211124 is an abundant number, since it is smaller than the sum of its proper divisors (50522018764).

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

30313211124 is a wasteful number, since it uses less digits than its factorization.

30313211124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360871575 (or 360871573 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 30313211124 its reverse (42111231303), we get a palindrome (72424442427).

The spelling of 30313211124 in words is "thirty billion, three hundred thirteen million, two hundred eleven thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 360871561 721743122 1082614683 1443486244 2165229366 2526100927 4330458732 5052201854 7578302781 10104403708 15156605562 30313211124