Base | Representation |
---|---|
bin | 101111000110… |
… | …101000011010 |
3 | 212020100011202 |
4 | 233012220122 |
5 | 11130113210 |
6 | 1120354202 |
7 | 206645540 |
oct | 57065032 |
9 | 25210152 |
10 | 12347930 |
11 | 6a74201 |
12 | 4175962 |
13 | 273448a |
14 | 18d5d90 |
15 | 113d9a5 |
hex | bc6a1a |
12347930 has 32 divisors (see below), whose sum is σ = 25522560. Its totient is φ = 4213440.
The previous prime is 12347911. The next prime is 12347953. The reversal of 12347930 is 3974321.
12347930 = T1 + T2 + ... + T419.
12347930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
12347930 is a nontrivial binomial coefficient, being equal to C(421, 3).
It is a junction number, because it is equal to n+sod(n) for n = 12347893 and 12347902.
It is an unprimeable number.
It is the 419-th tetrahedral number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29120 + ... + 29540.
It is an arithmetic number, because the mean of its divisors is an integer number (797580).
Almost surely, 212347930 is an apocalyptic number.
12347930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12347930 is an abundant number, since it is smaller than the sum of its proper divisors (13174630).
12347930 is a wasteful number, since it uses less digits than its factorization.
12347930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 854.
The product of its (nonzero) digits is 4536, while the sum is 29.
The square root of 12347930 is about 3513.9621511906. The cubic root of 12347930 is about 231.1344706589.
The spelling of 12347930 in words is "twelve million, three hundred forty-seven thousand, nine hundred thirty".
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