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30427184909 = 1123929129457
BaseRepresentation
bin11100010101100110…
…011111111100001101
32220112112010010220102
4130111212133330031
5444303324404114
621551132100445
72125004542622
oct342546377415
986475103812
1030427184909
11119a4397410
125a92004725
132b3ba34234
141689088349
15bd13ac2de
hex71599ff0d

30427184909 has 16 divisors (see below), whose sum is σ = 34674030720. Its totient is φ = 26429736960.

The previous prime is 30427184861. The next prime is 30427184923. The reversal of 30427184909 is 90948172403.

It is not a de Polignac number, because 30427184909 - 28 = 30427184653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30427184999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170309 + ... + 299765.

It is an arithmetic number, because the mean of its divisors is an integer number (2167126920).

Almost surely, 230427184909 is an apocalyptic number.

It is an amenable number.

30427184909 is a deficient number, since it is larger than the sum of its proper divisors (4246845811).

30427184909 is a wasteful number, since it uses less digits than its factorization.

30427184909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130420.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 30427184909 in words is "thirty billion, four hundred twenty-seven million, one hundred eighty-four thousand, nine hundred nine".

Divisors: 1 11 23 253 929 10219 21367 129457 235037 1424027 2977511 32752621 120265553 1322921083 2766107719 30427184909