Base | Representation |
---|---|
bin | 100100111110… |
… | …0001010010010 |
3 | 1100110202101022 |
4 | 1021330022102 |
5 | 14430223210 |
6 | 1531235442 |
7 | 323516000 |
oct | 111741222 |
9 | 40422338 |
10 | 19382930 |
11 | aa39756 |
12 | 65a8b82 |
13 | 40285b8 |
14 | 2807a70 |
15 | 1a7d155 |
hex | 127c292 |
19382930 has 32 divisors (see below), whose sum is σ = 40694400. Its totient is φ = 6644400.
The previous prime is 19382927. The next prime is 19382947. The reversal of 19382930 is 3928391.
It is a Harshad number since it is a multiple of its sum of digits (35).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605 + ... + 6255.
It is an arithmetic number, because the mean of its divisors is an integer number (1271700).
Almost surely, 219382930 is an apocalyptic number.
19382930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
19382930 is an abundant number, since it is smaller than the sum of its proper divisors (21311470).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19382930 is an equidigital number, since it uses as much as digits as its factorization.
19382930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5679 (or 5665 counting only the distinct ones).
The product of its (nonzero) digits is 11664, while the sum is 35.
The square root of 19382930 is about 4402.6049107318. The cubic root of 19382930 is about 268.6209057297.
The spelling of 19382930 in words is "nineteen million, three hundred eighty-two thousand, nine hundred thirty".
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