Base | Representation |
---|---|
bin | 1001100100001… |
… | …01100011000001 |
3 | 12120222112220212 |
4 | 10302011203001 |
5 | 131020120120 |
6 | 11543443505 |
7 | 1663006214 |
oct | 462054301 |
9 | 176875825 |
10 | 80238785 |
11 | 41324650 |
12 | 22a56595 |
13 | 13814c93 |
14 | a92977b |
15 | 709e6c5 |
hex | 4c858c1 |
80238785 has 16 divisors (see below), whose sum is σ = 105598080. Its totient is φ = 58045440.
The previous prime is 80238779. The next prime is 80238787. The reversal of 80238785 is 58783208.
It is not a de Polignac number, because 80238785 - 26 = 80238721 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (80238787) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6836 + ... + 14394.
It is an arithmetic number, because the mean of its divisors is an integer number (6599880).
Almost surely, 280238785 is an apocalyptic number.
It is an amenable number.
80238785 is a deficient number, since it is larger than the sum of its proper divisors (25359295).
80238785 is a wasteful number, since it uses less digits than its factorization.
80238785 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7768.
The product of its (nonzero) digits is 107520, while the sum is 41.
The square root of 80238785 is about 8957.6104514541. The cubic root of 80238785 is about 431.3152177499.
The spelling of 80238785 in words is "eighty million, two hundred thirty-eight thousand, seven hundred eighty-five".
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