Base | Representation |
---|---|
bin | 1001101000100… |
… | …10011101011010 |
3 | 12122001212122210 |
4 | 10310102131122 |
5 | 131142102322 |
6 | 12004055550 |
7 | 2000632023 |
oct | 464223532 |
9 | 178055583 |
10 | 80815962 |
11 | 41689257 |
12 | 230945b6 |
13 | 139878c6 |
14 | aa39c4a |
15 | 716570c |
hex | 4d1275a |
80815962 has 16 divisors (see below), whose sum is σ = 161735040. Its totient is φ = 26921472.
The previous prime is 80815921. The next prime is 80815981. The reversal of 80815962 is 26951808.
It is a self number, because there is not a number n which added to its sum of digits gives 80815962.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9114 + ... + 15642.
It is an arithmetic number, because the mean of its divisors is an integer number (10108440).
Almost surely, 280815962 is an apocalyptic number.
80815962 is an abundant number, since it is smaller than the sum of its proper divisors (80919078).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80815962 is a wasteful number, since it uses less digits than its factorization.
80815962 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8597.
The product of its (nonzero) digits is 34560, while the sum is 39.
The square root of 80815962 is about 8989.7698524489. The cubic root of 80815962 is about 432.3469328143.
The spelling of 80815962 in words is "eighty million, eight hundred fifteen thousand, nine hundred sixty-two".
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