Base | Representation |
---|---|
bin | 1000010101010… |
… | …00000011110011 |
3 | 11212112000002000 |
4 | 10022220003303 |
5 | 120343110022 |
6 | 10534025043 |
7 | 1506043503 |
oct | 412500363 |
9 | 155460060 |
10 | 69894387 |
11 | 364a9762 |
12 | 1b4a8183 |
13 | 11632734 |
14 | 93d5a03 |
15 | 62096ac |
hex | 42a80f3 |
69894387 has 8 divisors (see below), whose sum is σ = 103547280. Its totient is φ = 46596240.
The previous prime is 69894337. The next prime is 69894389. The reversal of 69894387 is 78349896.
It is not a de Polignac number, because 69894387 - 28 = 69894131 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is not an unprimeable number, because it can be changed into a prime (69894389) 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, 1294314 + ... + 1294367.
It is an arithmetic number, because the mean of its divisors is an integer number (12943410).
Almost surely, 269894387 is an apocalyptic number.
69894387 is a deficient number, since it is larger than the sum of its proper divisors (33652893).
69894387 is a wasteful number, since it uses less digits than its factorization.
69894387 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2588690 (or 2588684 counting only the distinct ones).
The product of its digits is 2612736, while the sum is 54.
The square root of 69894387 is about 8360.2862989254. The cubic root of 69894387 is about 411.9211583669.
The spelling of 69894387 in words is "sixty-nine million, eight hundred ninety-four thousand, three hundred eighty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •