Base | Representation |
---|---|
bin | 1001100010100… |
… | …10000110010111 |
3 | 12120120211212001 |
4 | 10301102012113 |
5 | 130441344210 |
6 | 11535140131 |
7 | 1661140642 |
oct | 461220627 |
9 | 176524761 |
10 | 80028055 |
11 | 411a0298 |
12 | 22974647 |
13 | 137700a3 |
14 | a8b2a59 |
15 | 705c03a |
hex | 4c52197 |
80028055 has 4 divisors (see below), whose sum is σ = 96033672. Its totient is φ = 64022440.
The previous prime is 80028043. The next prime is 80028071. The reversal of 80028055 is 55082008.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 80028055 - 215 = 79995287 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8002801 + ... + 8002810.
It is an arithmetic number, because the mean of its divisors is an integer number (24008418).
Almost surely, 280028055 is an apocalyptic number.
80028055 is a deficient number, since it is larger than the sum of its proper divisors (16005617).
80028055 is a wasteful number, since it uses less digits than its factorization.
80028055 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16005616.
The product of its (nonzero) digits is 3200, while the sum is 28.
The square root of 80028055 is about 8945.8400947032. The cubic root of 80028055 is about 430.9373010073.
The spelling of 80028055 in words is "eighty million, twenty-eight thousand, fifty-five".
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