Base | Representation |
---|---|
bin | 111100110011000001111 |
3 | 10202012210110 |
4 | 13212120033 |
5 | 1002222312 |
6 | 110411103 |
7 | 22635120 |
oct | 7463017 |
9 | 3665713 |
10 | 1992207 |
11 | 1140858 |
12 | 800a93 |
13 | 549a29 |
14 | 39c047 |
15 | 29543c |
hex | 1e660f |
1992207 has 16 divisors (see below), whose sum is σ = 3196160. Its totient is φ = 1078272.
The previous prime is 1992203. The next prime is 1992227. The reversal of 1992207 is 7022991.
It is not a de Polignac number, because 1992207 - 22 = 1992203 is a prime.
It is a Duffinian number.
It is a zygodrome in base 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1992203) 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, 2098 + ... + 2895.
It is an arithmetic number, because the mean of its divisors is an integer number (199760).
21992207 is an apocalyptic number.
1992207 is a deficient number, since it is larger than the sum of its proper divisors (1203953).
1992207 is a wasteful number, since it uses less digits than its factorization.
1992207 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5022.
The product of its (nonzero) digits is 2268, while the sum is 30.
The square root of 1992207 is about 1411.4556316087. The cubic root of 1992207 is about 125.8282492378.
The spelling of 1992207 in words is "one million, nine hundred ninety-two thousand, two hundred seven".
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