Base | Representation |
---|---|
bin | 100110010001… |
… | …1111000100101 |
3 | 1101202122202120 |
4 | 1030203320211 |
5 | 20114214200 |
6 | 1554100153 |
7 | 332406621 |
oct | 114437045 |
9 | 41678676 |
10 | 20069925 |
11 | 10368917 |
12 | 687a659 |
13 | 42091c5 |
14 | 2946181 |
15 | 1b669a0 |
hex | 1323e25 |
20069925 has 24 divisors (see below), whose sum is σ = 33658560. Its totient is φ = 10550400.
The previous prime is 20069923. The next prime is 20069939. The reversal of 20069925 is 52996002.
It is not a de Polignac number, because 20069925 - 21 = 20069923 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20069923) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3441 + ... + 7209.
It is an arithmetic number, because the mean of its divisors is an integer number (1402440).
Almost surely, 220069925 is an apocalyptic number.
20069925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
20069925 is a deficient number, since it is larger than the sum of its proper divisors (13588635).
20069925 is a wasteful number, since it uses less digits than its factorization.
20069925 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3853 (or 3848 counting only the distinct ones).
The product of its (nonzero) digits is 9720, while the sum is 33.
The square root of 20069925 is about 4479.9469862935. The cubic root of 20069925 is about 271.7577364559.
It can be divided in two parts, 200 and 69925, that added together give a triangular number (70125 = T374).
The spelling of 20069925 in words is "twenty million, sixty-nine thousand, nine hundred twenty-five".
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