Base | Representation |
---|---|
bin | 1001111000011… |
… | …11101111111111 |
3 | 12202222212012000 |
4 | 10330033233333 |
5 | 132210331030 |
6 | 12120513343 |
7 | 2024440560 |
oct | 474175777 |
9 | 182885160 |
10 | 82902015 |
11 | 42883569 |
12 | 2391b853 |
13 | 14238261 |
14 | b020167 |
15 | 7428860 |
hex | 4f0fbff |
82902015 has 64 divisors (see below), whose sum is σ = 173061120. Its totient is φ = 36858240.
The previous prime is 82901999. The next prime is 82902049. The reversal of 82902015 is 51020928.
It is not a de Polignac number, because 82902015 - 24 = 82901999 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a self number, because there is not a number n which added to its sum of digits gives 82902015.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33780 + ... + 36150.
It is an arithmetic number, because the mean of its divisors is an integer number (2704080).
Almost surely, 282902015 is an apocalyptic number.
82902015 is an abundant number, since it is smaller than the sum of its proper divisors (90159105).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
82902015 is a wasteful number, since it uses less digits than its factorization.
82902015 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2429 (or 2423 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 27.
The square root of 82902015 is about 9105.0543655708. The cubic root of 82902015 is about 436.0353459407.
The spelling of 82902015 in words is "eighty-two million, nine hundred two thousand, fifteen".
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