Base | Representation |
---|---|
bin | 100110011111… |
… | …0100011111000 |
3 | 1101222012122111 |
4 | 1030332203320 |
5 | 20131213232 |
6 | 2000302104 |
7 | 333343315 |
oct | 114764370 |
9 | 41865574 |
10 | 20179192 |
11 | 10432a20 |
12 | 6911934 |
13 | 4246b67 |
14 | 2973d0c |
15 | 1b89047 |
hex | 133e8f8 |
20179192 has 16 divisors (see below), whose sum is σ = 41275800. Its totient is φ = 9172320.
The previous prime is 20179189. The next prime is 20179217. The reversal of 20179192 is 29197102.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114567 + ... + 114742.
Almost surely, 220179192 is an apocalyptic number.
20179192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
20179192 is an abundant number, since it is smaller than the sum of its proper divisors (21096608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20179192 is a wasteful number, since it uses less digits than its factorization.
20179192 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 229326 (or 229322 counting only the distinct ones).
The product of its (nonzero) digits is 2268, while the sum is 31.
The square root of 20179192 is about 4492.1255547903. The cubic root of 20179192 is about 272.2500224158.
The spelling of 20179192 in words is "twenty million, one hundred seventy-nine thousand, one hundred ninety-two".
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