Base | Representation |
---|---|
bin | 110001001100… |
… | …001100101100 |
3 | 220021010122100 |
4 | 301030030230 |
5 | 11300120040 |
6 | 1140215100 |
7 | 214414545 |
oct | 61141454 |
9 | 26233570 |
10 | 12895020 |
11 | 7308246 |
12 | 439a490 |
13 | 28964b8 |
14 | 19d94cc |
15 | 11eab30 |
hex | c4c32c |
12895020 has 72 divisors (see below), whose sum is σ = 39705120. Its totient is φ = 3386880.
The previous prime is 12894991. The next prime is 12895031. The reversal of 12895020 is 2059821.
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, 12276 + ... + 13284.
It is an arithmetic number, because the mean of its divisors is an integer number (551460).
Almost surely, 212895020 is an apocalyptic number.
12895020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12895020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19852560).
12895020 is an abundant number, since it is smaller than the sum of its proper divisors (26810100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12895020 is a wasteful number, since it uses less digits than its factorization.
12895020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1095 (or 1090 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 27.
The square root of 12895020 is about 3590.9636589640. The cubic root of 12895020 is about 234.4988263012.
The spelling of 12895020 in words is "twelve million, eight hundred ninety-five thousand, twenty".
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