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30491822112 = 253317623147
BaseRepresentation
bin11100011001011101…
…000100100000100000
32220201000202001110220
4130121131010200200
5444421401301422
622001401323040
72126421132363
oct343135044040
986630661426
1030491822112
1111a27925294
125aab796480
132b4c245abb
1416938b20da
15bd6dc8e5c
hex719744820

30491822112 has 24 divisors (see below), whose sum is σ = 80041033296. Its totient is φ = 10163940672.

The previous prime is 30491822077. The next prime is 30491822143. The reversal of 30491822112 is 21122819403.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158811478 + ... + 158811669.

It is an arithmetic number, because the mean of its divisors is an integer number (3335043054).

Almost surely, 230491822112 is an apocalyptic number.

30491822112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30491822112 is an abundant number, since it is smaller than the sum of its proper divisors (49549211184).

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

30491822112 is a wasteful number, since it uses less digits than its factorization.

30491822112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317623160 (or 317623152 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 30491822112 in words is "thirty billion, four hundred ninety-one million, eight hundred twenty-two thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 317623147 635246294 952869441 1270492588 1905738882 2540985176 3811477764 5081970352 7622955528 10163940704 15245911056 30491822112