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30574123008 = 21131113172389
BaseRepresentation
bin11100011110010111…
…000001100000000000
32220220202121101002020
4130132113001200000
51000103433414013
622013501321440
72131440520602
oct343627014000
986822541066
1030574123008
1111a6a328160
125b13266280
132b63300560
1416a07b7172
15bde234623
hex71e5c1800

30574123008 has 768 divisors, whose sum is σ = 106991539200. Its totient is φ = 7612661760.

The previous prime is 30574123007. The next prime is 30574123033. The reversal of 30574123008 is 80032147503.

It is a tau number, because it is divible by the number of its divisors (768).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 30574123008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30574123007) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 343529428 + ... + 343529516.

It is an arithmetic number, because the mean of its divisors is an integer number (139311900).

Almost surely, 230574123008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30574123008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53495769600).

30574123008 is an abundant number, since it is smaller than the sum of its proper divisors (76417416192).

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

30574123008 is a wasteful number, since it uses less digits than its factorization.

30574123008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 30574123008 in words is "thirty billion, five hundred seventy-four million, one hundred twenty-three thousand, eight".