Base | Representation |
---|---|
bin | 110001001011… |
… | …101111010110 |
3 | 220021001001210 |
4 | 301023233112 |
5 | 11300040032 |
6 | 1140202250 |
7 | 214406223 |
oct | 61135726 |
9 | 26231053 |
10 | 12893142 |
11 | 7306899 |
12 | 4399386 |
13 | 28956a2 |
14 | 19d894a |
15 | 11ea2cc |
hex | c4bbd6 |
12893142 has 8 divisors (see below), whose sum is σ = 25786296. Its totient is φ = 4297712.
The previous prime is 12893141. The next prime is 12893149. The reversal of 12893142 is 24139821.
It is a sphenic number, since it is the product of 3 distinct primes.
12893142 is an admirable number.
It is a super-2 number, since 2×128931422 = 332466221264328, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12893141) 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, 1074423 + ... + 1074434.
It is an arithmetic number, because the mean of its divisors is an integer number (3223287).
Almost surely, 212893142 is an apocalyptic number.
12893142 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.
12893142 is a wasteful number, since it uses less digits than its factorization.
12893142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2148862.
The product of its digits is 3456, while the sum is 30.
The square root of 12893142 is about 3590.7021597454. The cubic root of 12893142 is about 234.4874417983.
The spelling of 12893142 in words is "twelve million, eight hundred ninety-three thousand, one hundred forty-two".
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