Base | Representation |
---|---|
bin | 100110010010… |
… | …0111001011011 |
3 | 1101202212110021 |
4 | 1030210321123 |
5 | 20114332300 |
6 | 1554131311 |
7 | 332425000 |
oct | 114447133 |
9 | 41685407 |
10 | 20074075 |
11 | 10370a4a |
12 | 6880b37 |
13 | 420b068 |
14 | 29478a7 |
15 | 1b67d1a |
hex | 1324e5b |
20074075 has 24 divisors (see below), whose sum is σ = 29040800. Its totient is φ = 13759200.
The previous prime is 20074057. The next prime is 20074139. The reversal of 20074075 is 57047002.
It is not a de Polignac number, because 20074075 - 27 = 20073947 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7405 + ... + 9745.
Almost surely, 220074075 is an apocalyptic number.
20074075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
20074075 is a deficient number, since it is larger than the sum of its proper divisors (8966725).
20074075 is an equidigital number, since it uses as much as digits as its factorization.
20074075 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2372 (or 2353 counting only the distinct ones).
The product of its (nonzero) digits is 1960, while the sum is 25.
The square root of 20074075 is about 4480.4101374763. The cubic root of 20074075 is about 271.7764662532.
The spelling of 20074075 in words is "twenty million, seventy-four thousand, seventy-five".
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