Base | Representation |
---|---|
bin | 101110101100… |
… | …001000001010 |
3 | 212000211021000 |
4 | 232230020022 |
5 | 11113124440 |
6 | 1114155430 |
7 | 206014203 |
oct | 56541012 |
9 | 25024230 |
10 | 12239370 |
11 | 69aa690 |
12 | 4122b76 |
13 | 26c6c40 |
14 | 18a85aa |
15 | 111b730 |
hex | bac20a |
12239370 has 128 divisors (see below), whose sum is σ = 38465280. Its totient is φ = 2730240.
The previous prime is 12239351. The next prime is 12239393. The reversal of 12239370 is 7393221.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38452 + ... + 38768.
It is an arithmetic number, because the mean of its divisors is an integer number (300510).
Almost surely, 212239370 is an apocalyptic number.
12239370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 12239370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19232640).
12239370 is an abundant number, since it is smaller than the sum of its proper divisors (26225910).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12239370 is a wasteful number, since it uses less digits than its factorization.
12239370 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 357 (or 351 counting only the distinct ones).
The product of its (nonzero) digits is 2268, while the sum is 27.
The square root of 12239370 is about 3498.4810989914. The cubic root of 12239370 is about 230.4551164797.
The spelling of 12239370 in words is "twelve million, two hundred thirty-nine thousand, three hundred seventy".
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