Base | Representation |
---|---|
bin | 101010001101… |
… | …0110110100111 |
3 | 1112122022202212 |
4 | 1110122312213 |
5 | 21131130322 |
6 | 2110154035 |
7 | 356050130 |
oct | 124326647 |
9 | 45568685 |
10 | 22130087 |
11 | 11545731 |
12 | 74b291b |
13 | 477ab35 |
14 | 2d20c87 |
15 | 1e220e2 |
hex | 151ada7 |
22130087 has 8 divisors (see below), whose sum is σ = 25373856. Its totient is φ = 18906912.
The previous prime is 22130083. The next prime is 22130089. The reversal of 22130087 is 78003122.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 22130087 - 22 = 22130083 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22130081) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2768 + ... + 7205.
It is an arithmetic number, because the mean of its divisors is an integer number (3171732).
Almost surely, 222130087 is an apocalyptic number.
22130087 is a deficient number, since it is larger than the sum of its proper divisors (3243769).
22130087 is an equidigital number, since it uses as much as digits as its factorization.
22130087 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10297.
The product of its (nonzero) digits is 672, while the sum is 23.
The square root of 22130087 is about 4704.2626414774. The cubic root of 22130087 is about 280.7551342606.
The spelling of 22130087 in words is "twenty-two million, one hundred thirty thousand, eighty-seven".
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