Base | Representation |
---|---|
bin | 100110001001… |
… | …0110101111111 |
3 | 1101122010000110 |
4 | 1030102311333 |
5 | 20110001002 |
6 | 1552401103 |
7 | 331666260 |
oct | 114226577 |
9 | 41563013 |
10 | 20000127 |
11 | 10320434 |
12 | 6846193 |
13 | 41b34c4 |
14 | 2928967 |
15 | 1b50e6c |
hex | 1312d7f |
20000127 has 16 divisors (see below), whose sum is σ = 30562560. Its totient is φ = 11396352.
The previous prime is 20000107. The next prime is 20000147. The reversal of 20000127 is 72100002.
It is an interprime number because it is at equal distance from previous prime (20000107) and next prime (20000147).
It is not a de Polignac number, because 20000127 - 26 = 20000063 is a prime.
It is a super-2 number, since 2×200001272 = 800010160032258, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20000107) 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, 7663 + ... + 9935.
It is an arithmetic number, because the mean of its divisors is an integer number (1910160).
Almost surely, 220000127 is an apocalyptic number.
20000127 is a deficient number, since it is larger than the sum of its proper divisors (10562433).
20000127 is a wasteful number, since it uses less digits than its factorization.
20000127 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2702.
The product of its (nonzero) digits is 28, while the sum is 12.
The square root of 20000127 is about 4472.1501540087. The cubic root of 20000127 is about 271.4423362100.
Adding to 20000127 its reverse (72100002), we get a palindrome (92100129).
It can be divided in two parts, 200001 and 27, that added together give a triangular number (200028 = T632).
The spelling of 20000127 in words is "twenty million, one hundred twenty-seven", and thus it is an aban number.
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