Base | Representation |
---|---|
bin | 11100011010011000… |
… | …001101110110101001 |
3 | 2220202002220210000220 |
4 | 130122120031312221 |
5 | 444434333430024 |
6 | 22003113520253 |
7 | 2126666666664 |
oct | 343230156651 |
9 | 86662823026 |
10 | 30507326889 |
11 | 11a35655256 |
12 | 5ab4a13089 |
13 | 2b52514120 |
14 | 169598a6db |
15 | bd843ce79 |
hex | 71a60dda9 |
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".
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