Base | Representation |
---|---|
bin | 100110001001… |
… | …0111001110111 |
3 | 1101122010100122 |
4 | 1030102321313 |
5 | 20110003000 |
6 | 1552402155 |
7 | 332000063 |
oct | 114227167 |
9 | 41563318 |
10 | 20000375 |
11 | 1032063a |
12 | 684635b |
13 | 41b3655 |
14 | 2928aa3 |
15 | 1b51085 |
hex | 1312e77 |
20000375 has 24 divisors (see below), whose sum is σ = 25966512. Its totient is φ = 15372000.
The previous prime is 20000359. The next prime is 20000377. The reversal of 20000375 is 57300002.
It is not a de Polignac number, because 20000375 - 24 = 20000359 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20000377) 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, 327845 + ... + 327905.
It is an arithmetic number, because the mean of its divisors is an integer number (1081938).
Almost surely, 220000375 is an apocalyptic number.
20000375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
20000375 is a deficient number, since it is larger than the sum of its proper divisors (5966137).
20000375 is an frugal number, since it uses more digits than its factorization.
20000375 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 180 (or 109 counting only the distinct ones).
The product of its (nonzero) digits is 210, while the sum is 17.
The square root of 20000375 is about 4472.1778810776. The cubic root of 20000375 is about 271.4434581599.
Adding to 20000375 its reverse (57300002), we get a palindrome (77300377).
The spelling of 20000375 in words is "twenty million, three hundred seventy-five", and thus it is an aban number.
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