Base | Representation |
---|---|
bin | 101110100111… |
… | …011011100010 |
3 | 211222211212102 |
4 | 232213123202 |
5 | 11112021010 |
6 | 1113530402 |
7 | 205604126 |
oct | 56473342 |
9 | 24884772 |
10 | 12220130 |
11 | 699718a |
12 | 4113a02 |
13 | 26bb260 |
14 | 18a1586 |
15 | 1115ba5 |
hex | ba76e2 |
12220130 has 64 divisors (see below), whose sum is σ = 25498368. Its totient is φ = 4181760.
The previous prime is 12220129. The next prime is 12220147. The reversal of 12220130 is 3102221.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182357 + ... + 182423.
It is an arithmetic number, because the mean of its divisors is an integer number (398412).
Almost surely, 212220130 is an apocalyptic number.
12220130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12220130 is an abundant number, since it is smaller than the sum of its proper divisors (13278238).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12220130 is a wasteful number, since it uses less digits than its factorization.
12220130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 171.
The product of its (nonzero) digits is 24, while the sum is 11.
The square root of 12220130 is about 3495.7302527512. The cubic root of 12220130 is about 230.3342964857.
Adding to 12220130 its reverse (3102221), we get a palindrome (15322351).
The spelling of 12220130 in words is "twelve million, two hundred twenty thousand, one hundred thirty".
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