Base | Representation |
---|---|
bin | 100100110101… |
… | …1110100111001 |
3 | 1100100100121100 |
4 | 1021223310321 |
5 | 14421103100 |
6 | 1530002013 |
7 | 323116641 |
oct | 111536471 |
9 | 40310540 |
10 | 19316025 |
11 | a9a3463 |
12 | 6576309 |
13 | 4004001 |
14 | 27cb521 |
15 | 1a68400 |
hex | 126bd39 |
19316025 has 27 divisors (see below), whose sum is σ = 34715629. Its totient is φ = 10266720.
The previous prime is 19316023. The next prime is 19316039. The reversal of 19316025 is 52061391.
The square root of 19316025 is 4395.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 4 ways, for example, as 3059001 + 16257024 = 1749^2 + 4032^2 .
It is not a de Polignac number, because 19316025 - 21 = 19316023 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 19316025.
It is not an unprimeable number, because it can be changed into a prime (19316023) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 65779 + ... + 66071.
Almost surely, 219316025 is an apocalyptic number.
19316025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
19316025 is the 4395-th square number.
19316025 is the 2198-th centered octagonal number.
It is an amenable number.
19316025 is a deficient number, since it is larger than the sum of its proper divisors (15399604).
19316025 is an equidigital number, since it uses as much as digits as its factorization.
19316025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 602 (or 301 counting only the distinct ones).
The product of its (nonzero) digits is 1620, while the sum is 27.
The cubic root of 19316025 is about 268.3114788300.
The spelling of 19316025 in words is "nineteen million, three hundred sixteen thousand, twenty-five".
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