Base | Representation |
---|---|
bin | 101111000000… |
… | …000000100000 |
3 | 212011221221221 |
4 | 233000000200 |
5 | 11123231200 |
6 | 1120024424 |
7 | 206503462 |
oct | 57000040 |
9 | 25157857 |
10 | 12320800 |
11 | 6a55888 |
12 | 4162114 |
13 | 272501b |
14 | 18ca132 |
15 | 113591a |
hex | bc0020 |
12320800 has 36 divisors (see below), whose sum is σ = 30080106. Its totient is φ = 4928000.
The previous prime is 12320783. The next prime is 12320827. The reversal of 12320800 is 802321.
It is a happy number.
It can be written as a sum of positive squares in 3 ways, for example, as 11916304 + 404496 = 3452^2 + 636^2 .
It is a super-2 number, since 2×123208002 = 303604225280000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6901 + ... + 8500.
Almost surely, 212320800 is an apocalyptic number.
12320800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12320800 is an abundant number, since it is smaller than the sum of its proper divisors (17759306).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12320800 is a wasteful number, since it uses less digits than its factorization.
12320800 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15421 (or 15408 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 16.
The square root of 12320800 is about 3510.0997136834. The cubic root of 12320800 is about 230.9650690858.
The spelling of 12320800 in words is "twelve million, three hundred twenty thousand, eight hundred".
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