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30001031472 = 243625021489
BaseRepresentation
bin11011111100001100…
…110110100100110000
32212102211020022021210
4123330030312210300
5442420231001342
621440550120120
72111311363026
oct337414664460
985384208253
1030001031472
11117a5888a95
125993350040
132aa1666739
141648636716
15ba8c7e79c
hex6fc336930

30001031472 has 20 divisors (see below), whose sum is σ = 77502664760. Its totient is φ = 10000343808.

The previous prime is 30001031453. The next prime is 30001031519. The reversal of 30001031472 is 27413010003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312510697 + ... + 312510792.

It is an arithmetic number, because the mean of its divisors is an integer number (3875133238).

Almost surely, 230001031472 is an apocalyptic number.

It is an amenable number.

30001031472 is an abundant number, since it is smaller than the sum of its proper divisors (47501633288).

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

30001031472 is a wasteful number, since it uses less digits than its factorization.

30001031472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625021500 (or 625021494 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

Adding to 30001031472 its reverse (27413010003), we get a palindrome (57414041475).

The spelling of 30001031472 in words is "thirty billion, one million, thirty-one thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 625021489 1250042978 1875064467 2500085956 3750128934 5000171912 7500257868 10000343824 15000515736 30001031472