Base | Representation |
---|---|
bin | 110001000110… |
… | …010100111001 |
3 | 220012220122120 |
4 | 301012110321 |
5 | 11243332334 |
6 | 1135511453 |
7 | 214254456 |
oct | 61062471 |
9 | 26186576 |
10 | 12870969 |
11 | 72a1171 |
12 | 4388589 |
13 | 2888577 |
14 | 19d082d |
15 | 11e3949 |
hex | c46539 |
12870969 has 8 divisors (see below), whose sum is σ = 17267232. Its totient is φ = 8527680.
The previous prime is 12870967. The next prime is 12870971. The reversal of 12870969 is 96907821.
It is an interprime number because it is at equal distance from previous prime (12870967) and next prime (12870971).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12870969 - 21 = 12870967 is a prime.
It is a super-2 number, since 2×128709692 = 331323685997922, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 12870969.
It is not an unprimeable number, because it can be changed into a prime (12870967) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12672 + ... + 13649.
It is an arithmetic number, because the mean of its divisors is an integer number (2158404).
Almost surely, 212870969 is an apocalyptic number.
It is an amenable number.
12870969 is a deficient number, since it is larger than the sum of its proper divisors (4396263).
12870969 is a wasteful number, since it uses less digits than its factorization.
12870969 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26487.
The product of its (nonzero) digits is 54432, while the sum is 42.
The square root of 12870969 is about 3587.6132734730. The cubic root of 12870969 is about 234.3529446268.
It can be divided in two parts, 128709 and 69, that added together give a triangular number (128778 = T507).
The spelling of 12870969 in words is "twelve million, eight hundred seventy thousand, nine hundred sixty-nine".
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