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30487255236 = 2232291012
BaseRepresentation
bin11100011001001011…
…101001100011000100
32220200201011000220100
4130121023221203010
5444414214131421
622001115404100
72126334252024
oct343113514304
986621130810
1030487255236
1111a25296109
125aaa153630
132b4b3071c9
141693043a84
15bd67c5c26
hex7192e98c4

30487255236 has 27 divisors (see below), whose sum is σ = 77067654573. Its totient is φ = 10162069200.

The previous prime is 30487255219. The next prime is 30487255241. The reversal of 30487255236 is 63255278403.

The square root of 30487255236 is 174606.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 253000836 + 30234254400 = 15906^2 + 173880^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30487255191 and 30487255200.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1033086 + ... + 1062186.

Almost surely, 230487255236 is an apocalyptic number.

30487255236 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

30487255236 is the 174606-th square number.

It is an amenable number.

30487255236 is an abundant number, since it is smaller than the sum of its proper divisors (46580399337).

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

30487255236 is an frugal number, since it uses more digits than its factorization.

30487255236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58212 (or 29106 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 30487255236 in words is "thirty billion, four hundred eighty-seven million, two hundred fifty-five thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 9 12 18 36 29101 58202 87303 116404 174606 261909 349212 523818 1047636 846868201 1693736402 2540604603 3387472804 5081209206 7621813809 10162418412 15243627618 30487255236