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30613864320 = 27325133891051
BaseRepresentation
bin11100100000101110…
…100111111110000000
32221000112101102220200
4130200232213332000
51000144122124240
622021441205200
72132432360514
oct344056477600
987015342820
1030613864320
1111a8a801416
125b24630800
132b6b606420
1416a5ba0144
15be2984930
hex720ba7f80

30613864320 has 384 divisors, whose sum is σ = 114246568800. Its totient is φ = 7509196800.

The previous prime is 30613864283. The next prime is 30613864321. The reversal of 30613864320 is 2346831603.

30613864320 is a `hidden beast` number, since 3 + 0 + 6 + 1 + 3 + 8 + 643 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30613864321) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 29127795 + ... + 29128845.

Almost surely, 230613864320 is an apocalyptic number.

30613864320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30613864320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57123284400).

30613864320 is an abundant number, since it is smaller than the sum of its proper divisors (83632704480).

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

30613864320 is a wasteful number, since it uses less digits than its factorization.

30613864320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478 (or 1463 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 30613864320 in words is "thirty billion, six hundred thirteen million, eight hundred sixty-four thousand, three hundred twenty".