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30507326889 = 3133132537757
BaseRepresentation
bin11100011010011000…
…001101110110101001
32220202002220210000220
4130122120031312221
5444434333430024
622003113520253
72126666666664
oct343230156651
986662823026
1030507326889
1111a35655256
125ab4a13089
132b52514120
14169598a6db
15bd843ce79
hex71a60dda9

30507326889 has 32 divisors (see below), whose sum is σ = 45238201344. Its totient is φ = 18160208640.

The previous prime is 30507326833. The next prime is 30507326911. The reversal of 30507326889 is 98862370503.

It is not a de Polignac number, because 30507326889 - 213 = 30507318697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30507326809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3928999 + ... + 3936755.

It is an arithmetic number, because the mean of its divisors is an integer number (1413693792).

Almost surely, 230507326889 is an apocalyptic number.

30507326889 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

30507326889 is a deficient number, since it is larger than the sum of its proper divisors (14730874455).

30507326889 is a wasteful number, since it uses less digits than its factorization.

30507326889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11057.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 30507326889 in words is "thirty billion, five hundred seven million, three hundred twenty-six thousand, eight hundred eighty-nine".

Divisors: 1 3 13 31 39 93 403 1209 3253 7757 9759 23271 42289 100841 100843 126867 240467 302523 302529 721401 1310959 3126071 3932877 9378213 25233521 75700563 328035773 782239151 984107319 2346717453 10169108963 30507326889