Base | Representation |
---|---|
bin | 1001100010100… |
… | …11000011011110 |
3 | 12120121001012220 |
4 | 10301103003132 |
5 | 130442010331 |
6 | 11535210210 |
7 | 1661155230 |
oct | 461230336 |
9 | 176531186 |
10 | 80031966 |
11 | 411a3223 |
12 | 22976966 |
13 | 13771ac1 |
14 | a8b4250 |
15 | 705d296 |
hex | 4c530de |
80031966 has 32 divisors (see below), whose sum is σ = 186036480. Its totient is φ = 22478016.
The previous prime is 80031949. The next prime is 80031983. The reversal of 80031966 is 66913008.
It is an interprime number because it is at equal distance from previous prime (80031949) and next prime (80031983).
It is a congruent number.
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 15 ways as a sum of consecutive naturals, for example, 13671 + ... + 18626.
It is an arithmetic number, because the mean of its divisors is an integer number (5813640).
Almost surely, 280031966 is an apocalyptic number.
80031966 is an abundant number, since it is smaller than the sum of its proper divisors (106004514).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80031966 is a wasteful number, since it uses less digits than its factorization.
80031966 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32368.
The product of its (nonzero) digits is 7776, while the sum is 33.
The square root of 80031966 is about 8946.0586852535. The cubic root of 80031966 is about 430.9443209135.
The spelling of 80031966 in words is "eighty million, thirty-one thousand, nine hundred sixty-six".
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