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30307784970 = 2351010259499
BaseRepresentation
bin11100001110011111…
…000001100100001010
32220020012102222222110
4130032133001210022
5444032243104340
621531225003150
72122024631061
oct341637014412
986205388873
1030307784970
1111942a55481
125a5a0234b6
132b2008a498
1416772871d8
15bc5b74680
hex70e7c190a

30307784970 has 16 divisors (see below), whose sum is σ = 72738684000. Its totient is φ = 8082075984.

The previous prime is 30307784959. The next prime is 30307784999. The reversal of 30307784970 is 7948770303.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505129720 + ... + 505129779.

It is an arithmetic number, because the mean of its divisors is an integer number (4546167750).

Almost surely, 230307784970 is an apocalyptic number.

30307784970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30307784970 is an abundant number, since it is smaller than the sum of its proper divisors (42430899030).

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

30307784970 is a wasteful number, since it uses less digits than its factorization.

30307784970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010259509.

The product of its (nonzero) digits is 889056, while the sum is 48.

The spelling of 30307784970 in words is "thirty billion, three hundred seven million, seven hundred eighty-four thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 1010259499 2020518998 3030778497 5051297495 6061556994 10102594990 15153892485 30307784970