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30156115424 = 255281178447
BaseRepresentation
bin11100000101011100…
…011100110111100000
32212211122001101110212
4130011130130313200
5443224431143144
621504210113252
72115203515601
oct340534346740
985748041425
1030156115424
1111875382946
125a1727b828
132ac78256a6
141661085da8
15bb76b549e
hex70571cde0

30156115424 has 24 divisors (see below), whose sum is σ = 59381427168. Its totient is φ = 15075118080.

The previous prime is 30156115393. The next prime is 30156115453. The reversal of 30156115424 is 42451165103.

It is a super-2 number, since 2×301561154242 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79769 + ... + 258215.

It is an arithmetic number, because the mean of its divisors is an integer number (2474226132).

Almost surely, 230156115424 is an apocalyptic number.

It is an amenable number.

30156115424 is a deficient number, since it is larger than the sum of its proper divisors (29225311744).

30156115424 is a wasteful number, since it uses less digits than its factorization.

30156115424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183738 (or 183730 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 30156115424 in words is "thirty billion, one hundred fifty-six million, one hundred fifteen thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 32 5281 10562 21124 42248 84496 168992 178447 356894 713788 1427576 2855152 5710304 942378607 1884757214 3769514428 7539028856 15078057712 30156115424