Base | Representation |
---|---|
bin | 110001011010… |
… | …110110001100 |
3 | 220101011221120 |
4 | 301122312030 |
5 | 11304030040 |
6 | 1141400540 |
7 | 215054511 |
oct | 61326614 |
9 | 26334846 |
10 | 12955020 |
11 | 7349331 |
12 | 4409150 |
13 | 28b78c0 |
14 | 1a13308 |
15 | 120d7d0 |
hex | c5ad8c |
12955020 has 96 divisors (see below), whose sum is σ = 41404608. Its totient is φ = 2998272.
The previous prime is 12955001. The next prime is 12955027. The reversal of 12955020 is 2055921.
12955020 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 not an unprimeable number, because it can be changed into a prime (12955027) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12772 + ... + 13748.
It is an arithmetic number, because the mean of its divisors is an integer number (431298).
Almost surely, 212955020 is an apocalyptic number.
12955020 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 12955020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20702304).
12955020 is an abundant number, since it is smaller than the sum of its proper divisors (28449588).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12955020 is a wasteful number, since it uses less digits than its factorization.
12955020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1019 (or 1017 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 24.
The square root of 12955020 is about 3599.3082668757. The cubic root of 12955020 is about 234.8619681328.
The spelling of 12955020 in words is "twelve million, nine hundred fifty-five thousand, twenty".
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