Base | Representation |
---|---|
bin | 1001100011011… |
… | …10010010000010 |
3 | 12120210201012102 |
4 | 10301232102002 |
5 | 131004042430 |
6 | 11541430402 |
7 | 1662131330 |
oct | 461562202 |
9 | 176721172 |
10 | 80143490 |
11 | 41269a99 |
12 | 22a0b402 |
13 | 137b07ab |
14 | a902b50 |
15 | 7081345 |
hex | 4c6e482 |
80143490 has 16 divisors (see below), whose sum is σ = 164866752. Its totient is φ = 27477744.
The previous prime is 80143487. The next prime is 80143499. The reversal of 80143490 is 9434108.
It is not an unprimeable number, because it can be changed into a prime (80143499) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572384 + ... + 572523.
It is an arithmetic number, because the mean of its divisors is an integer number (10304172).
Almost surely, 280143490 is an apocalyptic number.
80143490 is an abundant number, since it is smaller than the sum of its proper divisors (84723262).
80143490 is a wasteful number, since it uses less digits than its factorization.
80143490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1144921.
The product of its (nonzero) digits is 3456, while the sum is 29.
The square root of 80143490 is about 8952.2896512568. The cubic root of 80143490 is about 431.1444006652.
Adding to 80143490 its reverse (9434108), we get a palindrome (89577598).
The spelling of 80143490 in words is "eighty million, one hundred forty-three thousand, four hundred ninety".
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