Base | Representation |
---|---|
bin | 1001100101111… |
… | …00110001011011 |
3 | 12121102001012201 |
4 | 10302330301123 |
5 | 131044334422 |
6 | 11552351031 |
7 | 1664640541 |
oct | 462746133 |
9 | 177361181 |
10 | 80464987 |
11 | 41469599 |
12 | 22b45477 |
13 | 13893c25 |
14 | a987d91 |
15 | 70e6727 |
hex | 4cbcc5b |
80464987 has 8 divisors (see below), whose sum is σ = 82317312. Its totient is φ = 78618600.
The previous prime is 80464957. The next prime is 80465003. The reversal of 80464987 is 78946408.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80464987 - 219 = 79940699 is a prime.
It is a super-2 number, since 2×804649872 = 12949228265820338, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80464957) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37062 + ... + 39172.
It is an arithmetic number, because the mean of its divisors is an integer number (10289664).
Almost surely, 280464987 is an apocalyptic number.
80464987 is a deficient number, since it is larger than the sum of its proper divisors (1852325).
80464987 is a wasteful number, since it uses less digits than its factorization.
80464987 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2969.
The product of its (nonzero) digits is 387072, while the sum is 46.
The square root of 80464987 is about 8970.2278120458. The cubic root of 80464987 is about 431.7201458929.
The spelling of 80464987 in words is "eighty million, four hundred sixty-four thousand, nine hundred eighty-seven".
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