Base | Representation |
---|---|
bin | 10110111001000… |
… | …10100010111101 |
3 | 111101100011212220 |
4 | 23130202202331 |
5 | 343124442114 |
6 | 31015515553 |
7 | 4521143610 |
oct | 1334424275 |
9 | 441304786 |
10 | 192030909 |
11 | 9943a734 |
12 | 54388bb9 |
13 | 30a26c75 |
14 | 1b70a177 |
15 | 11cd30a9 |
hex | b7228bd |
192030909 has 16 divisors (see below), whose sum is σ = 296325120. Its totient is φ = 108342000.
The previous prime is 192030893. The next prime is 192030913. The reversal of 192030909 is 909030291.
It is not a de Polignac number, because 192030909 - 24 = 192030893 is a prime.
It is a super-2 number, since 2×1920309092 = 73751740022732562, 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 192030909.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (192030809) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56217 + ... + 59534.
It is an arithmetic number, because the mean of its divisors is an integer number (18520320).
Almost surely, 2192030909 is an apocalyptic number.
It is an amenable number.
192030909 is a deficient number, since it is larger than the sum of its proper divisors (104294211).
192030909 is a wasteful number, since it uses less digits than its factorization.
192030909 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 115840.
The product of its (nonzero) digits is 4374, while the sum is 33.
The square root of 192030909 is about 13857.5217481338. The cubic root of 192030909 is about 576.9307837480.
It can be divided in two parts, 192030 and 909, that multiplied together give a triangular number (174555270 = T18684).
The spelling of 192030909 in words is "one hundred ninety-two million, thirty thousand, nine hundred nine".
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