Base | Representation |
---|---|
bin | 110001100001… |
… | …000110111110 |
3 | 220102111010120 |
4 | 301201012332 |
5 | 11310340140 |
6 | 1142115410 |
7 | 215222343 |
oct | 61410676 |
9 | 26374116 |
10 | 12980670 |
11 | 736662a |
12 | 441bb66 |
13 | 28c6491 |
14 | 1a1c7ca |
15 | 12161d0 |
hex | c611be |
12980670 has 32 divisors (see below), whose sum is σ = 31408128. Its totient is φ = 3433248.
The previous prime is 12980633. The next prime is 12980677. The reversal of 12980670 is 7608921.
12980670 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12980677) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2107 + ... + 5513.
It is an arithmetic number, because the mean of its divisors is an integer number (981504).
Almost surely, 212980670 is an apocalyptic number.
12980670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12980670 is an abundant number, since it is smaller than the sum of its proper divisors (18427458).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12980670 is a wasteful number, since it uses less digits than its factorization.
12980670 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3544.
The product of its (nonzero) digits is 6048, while the sum is 33.
The square root of 12980670 is about 3602.8696895669. The cubic root of 12980670 is about 235.0168691678.
The spelling of 12980670 in words is "twelve million, nine hundred eighty thousand, six hundred seventy".
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