Base | Representation |
---|---|
bin | 11100010011000011… |
… | …010100000100011111 |
3 | 2220102112121210101120 |
4 | 130103003110010133 |
5 | 444211402004230 |
6 | 21543003142023 |
7 | 2123645124300 |
oct | 342303240437 |
9 | 86375553346 |
10 | 30384406815 |
11 | 11982229614 |
12 | 5a7b814913 |
13 | 2b32c07059 |
14 | 16835107a7 |
15 | bcc75c310 |
hex | 7130d411f |
30384406815 has 24 divisors (see below), whose sum is σ = 56552203440. Its totient is φ = 13890014208.
The previous prime is 30384406783. The next prime is 30384406837. The reversal of 30384406815 is 51860448303.
It is not a de Polignac number, because 30384406815 - 25 = 30384406783 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20668930 + ... + 20670399.
It is an arithmetic number, because the mean of its divisors is an integer number (2356341810).
Almost surely, 230384406815 is an apocalyptic number.
30384406815 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30384406815 is a deficient number, since it is larger than the sum of its proper divisors (26167796625).
30384406815 is a wasteful number, since it uses less digits than its factorization.
30384406815 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41339351 (or 41339344 counting only the distinct ones).
The product of its (nonzero) digits is 276480, while the sum is 42.
The spelling of 30384406815 in words is "thirty billion, three hundred eighty-four million, four hundred six thousand, eight hundred fifteen".
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