Base | Representation |
---|---|
bin | 100110010100… |
… | …0001101111100 |
3 | 1101210120010000 |
4 | 1030220031330 |
5 | 20120301201 |
6 | 1554314300 |
7 | 332512440 |
oct | 114501574 |
9 | 41716100 |
10 | 20087676 |
11 | 10380194 |
12 | 6888990 |
13 | 42142cb |
14 | 294c820 |
15 | 1b6bd86 |
hex | 132837c |
20087676 has 120 divisors (see below), whose sum is σ = 63667296. Its totient is φ = 5391360.
The previous prime is 20087653. The next prime is 20087701. The reversal of 20087676 is 67678002.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a self number, because there is not a number n which added to its sum of digits gives 20087676.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 38296 + ... + 38816.
Almost surely, 220087676 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20087676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31833648).
20087676 is an abundant number, since it is smaller than the sum of its proper divisors (43579620).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20087676 is a wasteful number, since it uses less digits than its factorization.
20087676 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 561 (or 550 counting only the distinct ones).
The product of its (nonzero) digits is 28224, while the sum is 36.
The square root of 20087676 is about 4481.9277102604. The cubic root of 20087676 is about 271.8378322556.
The spelling of 20087676 in words is "twenty million, eighty-seven thousand, six hundred seventy-six".
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