Base | Representation |
---|---|
bin | 1001101001011… |
… | …11000101000110 |
3 | 12122021211110120 |
4 | 10310233011012 |
5 | 131204330230 |
6 | 12010402410 |
7 | 2001630552 |
oct | 464570506 |
9 | 178254416 |
10 | 80933190 |
11 | 41759338 |
12 | 23130406 |
13 | 139c9080 |
14 | aa6a862 |
15 | 718a310 |
hex | 4d2f146 |
80933190 has 32 divisors (see below), whose sum is σ = 209182176. Its totient is φ = 19921920.
The previous prime is 80933183. The next prime is 80933197. The reversal of 80933190 is 9133908.
It is an interprime number because it is at equal distance from previous prime (80933183) and next prime (80933197).
It is a super-2 number, since 2×809331902 = 13100362487152200, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80933197) by changing a digit.
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, 103371 + ... + 104150.
It is an arithmetic number, because the mean of its divisors is an integer number (6536943).
Almost surely, 280933190 is an apocalyptic number.
80933190 is an abundant number, since it is smaller than the sum of its proper divisors (128248986).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80933190 is a wasteful number, since it uses less digits than its factorization.
80933190 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 207544.
The product of its (nonzero) digits is 5832, while the sum is 33.
The square root of 80933190 is about 8996.2875676581. The cubic root of 80933190 is about 432.5558794897. Note that the first 3 decimals are identical.
The spelling of 80933190 in words is "eighty million, nine hundred thirty-three thousand, one hundred ninety".
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