Base | Representation |
---|---|
bin | 100110001111… |
… | …0101111101101 |
3 | 1101201120220000 |
4 | 1030132233231 |
5 | 20113031002 |
6 | 1553414513 |
7 | 332261352 |
oct | 114365755 |
9 | 41646800 |
10 | 20048877 |
11 | 10354022 |
12 | 686a439 |
13 | 41cc754 |
14 | 293c629 |
15 | 1b6061c |
hex | 131ebed |
20048877 has 20 divisors (see below), whose sum is σ = 30685116. Its totient is φ = 13037760.
The previous prime is 20048869. The next prime is 20048881. The reversal of 20048877 is 77884002.
It can be written as a sum of positive squares in 2 ways, for example, as 2232036 + 17816841 = 1494^2 + 4221^2 .
It is not a de Polignac number, because 20048877 - 23 = 20048869 is a prime.
It is a super-2 number, since 2×200488772 = 803914937922258, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20048807) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 303 + ... + 6339.
Almost surely, 220048877 is an apocalyptic number.
20048877 is a gapful number since it is divisible by the number (27) formed by its first and last digit.
It is an amenable number.
20048877 is a deficient number, since it is larger than the sum of its proper divisors (10636239).
20048877 is an equidigital number, since it uses as much as digits as its factorization.
20048877 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6090 (or 6081 counting only the distinct ones).
The product of its (nonzero) digits is 25088, while the sum is 36.
The square root of 20048877 is about 4477.5972351251. The cubic root of 20048877 is about 271.6627027579.
The spelling of 20048877 in words is "twenty million, forty-eight thousand, eight hundred seventy-seven".
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