Base | Representation |
---|---|
bin | 101101110101… |
… | …000000000001 |
3 | 211121100112000 |
4 | 231311000001 |
5 | 11033413234 |
6 | 1105254213 |
7 | 204053661 |
oct | 55650001 |
9 | 24540460 |
10 | 12013569 |
11 | 6865a77 |
12 | 4034369 |
13 | 2648229 |
14 | 184a1a1 |
15 | 10c4899 |
hex | b75001 |
12013569 has 32 divisors (see below), whose sum is σ = 18768000. Its totient is φ = 7584192.
The previous prime is 12013553. The next prime is 12013571. The reversal of 12013569 is 96531021.
It is not a de Polignac number, because 12013569 - 24 = 12013553 is a prime.
It is a super-2 number, since 2×120135692 = 288651680235522, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (12013549) 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, 52347 + ... + 52575.
It is an arithmetic number, because the mean of its divisors is an integer number (586500).
It is a Proth number, since it is equal to 2933 ⋅ 212 + 1 and 2933 < 212.
Almost surely, 212013569 is an apocalyptic number.
It is an amenable number.
12013569 is a deficient number, since it is larger than the sum of its proper divisors (6754431).
12013569 is a wasteful number, since it uses less digits than its factorization.
12013569 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 334 (or 328 counting only the distinct ones).
The product of its (nonzero) digits is 1620, while the sum is 27.
The square root of 12013569 is about 3466.0595782531. The cubic root of 12013569 is about 229.0291083814.
It can be divided in two parts, 120 and 13569, that added together give a square (13689 = 1172).
The spelling of 12013569 in words is "twelve million, thirteen thousand, five hundred sixty-nine".
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