Base | Representation |
---|---|
bin | 110001100100… |
… | …101000110000 |
3 | 220110012221202 |
4 | 301210220300 |
5 | 11311320440 |
6 | 1142310332 |
7 | 215312435 |
oct | 61445060 |
9 | 26405852 |
10 | 12995120 |
11 | 7376476 |
12 | 44283a8 |
13 | 28ccc28 |
14 | 1a23b8c |
15 | 121a615 |
hex | c64a30 |
12995120 has 20 divisors (see below), whose sum is σ = 30213840. Its totient is φ = 5198016.
The previous prime is 12995117. The next prime is 12995137. The reversal of 12995120 is 2159921.
It is a tau number, because it is divible by the number of its divisors (20).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81140 + ... + 81299.
It is an arithmetic number, because the mean of its divisors is an integer number (1510692).
Almost surely, 212995120 is an apocalyptic number.
12995120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12995120 is an abundant number, since it is smaller than the sum of its proper divisors (17218720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12995120 is a wasteful number, since it uses less digits than its factorization.
12995120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 162452 (or 162446 counting only the distinct ones).
The product of its (nonzero) digits is 1620, while the sum is 29.
The square root of 12995120 is about 3604.8744777038. The cubic root of 12995120 is about 235.1040432609.
The spelling of 12995120 in words is "twelve million, nine hundred ninety-five thousand, one hundred twenty".
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