Base | Representation |
---|---|
bin | 100100101100… |
… | …0000100111010 |
3 | 1100012020122020 |
4 | 1021120010322 |
5 | 14411011010 |
6 | 1524135310 |
7 | 322332045 |
oct | 111300472 |
9 | 40166566 |
10 | 19235130 |
11 | a948702 |
12 | 6537536 |
13 | 3ca6245 |
14 | 27a9c5c |
15 | 1a4e470 |
hex | 125813a |
19235130 has 64 divisors (see below), whose sum is σ = 49068288. Its totient is φ = 4815360.
The previous prime is 19235129. The next prime is 19235171. The reversal of 19235130 is 3153291.
It is a happy number.
It is a super-2 number, since 2×192351302 = 739980452233800, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 19235130.
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, 41862 + ... + 42318.
It is an arithmetic number, because the mean of its divisors is an integer number (766692).
Almost surely, 219235130 is an apocalyptic number.
19235130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 19235130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24534144).
19235130 is an abundant number, since it is smaller than the sum of its proper divisors (29833158).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19235130 is a wasteful number, since it uses less digits than its factorization.
19235130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 551.
The product of its (nonzero) digits is 810, while the sum is 24.
The square root of 19235130 is about 4385.7872725430. The cubic root of 19235130 is about 267.9363942764.
The spelling of 19235130 in words is "nineteen million, two hundred thirty-five thousand, one hundred thirty".
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