Base | Representation |
---|---|
bin | 10111001001110111… |
… | …01100110100110010 |
3 | 1012002022201120001100 |
4 | 23210323230310302 |
5 | 200424240234223 |
6 | 5413254545230 |
7 | 620021654040 |
oct | 134473546462 |
9 | 35068646040 |
10 | 12430789938 |
11 | 52a9947516 |
12 | 24ab068216 |
13 | 1231496808 |
14 | 85cd19390 |
15 | 4cb4b7043 |
hex | 2e4eecd32 |
12430789938 has 48 divisors (see below), whose sum is σ = 32401062720. Its totient is φ = 3364724448.
The previous prime is 12430789897. The next prime is 12430789951. The reversal of 12430789938 is 83998703421.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2593845 + ... + 2598632.
It is an arithmetic number, because the mean of its divisors is an integer number (675022140).
Almost surely, 212430789938 is an apocalyptic number.
12430789938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
12430789938 is an abundant number, since it is smaller than the sum of its proper divisors (19970272782).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12430789938 is a wasteful number, since it uses less digits than its factorization.
12430789938 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5192511 (or 5192508 counting only the distinct ones).
The product of its (nonzero) digits is 2612736, while the sum is 54.
The spelling of 12430789938 in words is "twelve billion, four hundred thirty million, seven hundred eighty-nine thousand, nine hundred thirty-eight".
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