Base | Representation |
---|---|
bin | 1001100010101… |
… | …00101001011101 |
3 | 12120121101011122 |
4 | 10301110221131 |
5 | 130442212433 |
6 | 11535300325 |
7 | 1661213243 |
oct | 461245135 |
9 | 176541148 |
10 | 80038493 |
11 | 411a8117 |
12 | 2297a6a5 |
13 | 13774a72 |
14 | a8b6793 |
15 | 7060198 |
hex | 4c54a5d |
80038493 has 2 divisors, whose sum is σ = 80038494. Its totient is φ = 80038492.
The previous prime is 80038489. The next prime is 80038531. The reversal of 80038493 is 39483008.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 53392249 + 26646244 = 7307^2 + 5162^2 .
It is a cyclic number.
It is not a de Polignac number, because 80038493 - 22 = 80038489 is a prime.
It is a super-2 number, since 2×800384932 = 12812320723422098, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80038403) 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 as a sum of consecutive naturals, namely, 40019246 + 40019247.
It is an arithmetic number, because the mean of its divisors is an integer number (40019247).
Almost surely, 280038493 is an apocalyptic number.
It is an amenable number.
80038493 is a deficient number, since it is larger than the sum of its proper divisors (1).
80038493 is an equidigital number, since it uses as much as digits as its factorization.
80038493 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 20736, while the sum is 35.
The square root of 80038493 is about 8946.4234753336. The cubic root of 80038493 is about 430.9560358039.
It can be divided in two parts, 800 and 38493, that added together give a palindrome (39293).
The spelling of 80038493 in words is "eighty million, thirty-eight thousand, four hundred ninety-three".
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