Base | Representation |
---|---|
bin | 110001001010… |
… | …010000010010 |
3 | 220020201201110 |
4 | 301022100102 |
5 | 11244341213 |
6 | 1140114150 |
7 | 214352412 |
oct | 61122022 |
9 | 26221643 |
10 | 12887058 |
11 | 7302268 |
12 | 4395956 |
13 | 28929a2 |
14 | 19d6642 |
15 | 11e85c3 |
hex | c4a412 |
12887058 has 8 divisors (see below), whose sum is σ = 25774128. Its totient is φ = 4295684.
The previous prime is 12887053. The next prime is 12887059. The reversal of 12887058 is 85078821.
It is a sphenic number, since it is the product of 3 distinct primes.
12887058 is an admirable number.
It is a super-3 number, since 3×128870583 (a number of 22 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (12887053) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073916 + ... + 1073927.
It is an arithmetic number, because the mean of its divisors is an integer number (3221766).
Almost surely, 212887058 is an apocalyptic number.
12887058 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12887058 is a wasteful number, since it uses less digits than its factorization.
12887058 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2147848.
The product of its (nonzero) digits is 35840, while the sum is 39.
The square root of 12887058 is about 3589.8548717184. The cubic root of 12887058 is about 234.4505527801.
The spelling of 12887058 in words is "twelve million, eight hundred eighty-seven thousand, fifty-eight".
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