Base | Representation |
---|---|
bin | 101111110000… |
… | …111000000000 |
3 | 212120010112021 |
4 | 233300320000 |
5 | 11201132320 |
6 | 1124211224 |
7 | 211266154 |
oct | 57607000 |
9 | 25503467 |
10 | 12520960 |
11 | 7082201 |
12 | 4239b14 |
13 | 279516a |
14 | 193d064 |
15 | 1174daa |
hex | bf0e00 |
12520960 has 80 divisors (see below), whose sum is σ = 30886416. Its totient is φ = 4866048.
The previous prime is 12520957. The next prime is 12520967. The reversal of 12520960 is 6902521.
12520960 = T339 + T340 + ... + T484.
It is a tau number, because it is divible by the number of its divisors (80).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12520967) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171484 + ... + 171556.
Almost surely, 212520960 is an apocalyptic number.
12520960 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 12520960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15443208).
12520960 is an abundant number, since it is smaller than the sum of its proper divisors (18365456).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12520960 is an frugal number, since it uses more digits than its factorization.
12520960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 163 (or 147 counting only the distinct ones).
The product of its (nonzero) digits is 1080, while the sum is 25.
The square root of 12520960 is about 3538.4968560110. The cubic root of 12520960 is about 232.2090861809.
The spelling of 12520960 in words is "twelve million, five hundred twenty thousand, nine hundred sixty".
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