Base | Representation |
---|---|
bin | 1001100011011… |
… | …10100100110000 |
3 | 12120210202211210 |
4 | 10301232210300 |
5 | 131004112223 |
6 | 11541440120 |
7 | 1662134661 |
oct | 461564460 |
9 | 176722753 |
10 | 80144688 |
11 | 4126a988 |
12 | 22a10040 |
13 | 137b11c0 |
14 | a903368 |
15 | 7081893 |
hex | 4c6e930 |
80144688 has 40 divisors (see below), whose sum is σ = 222968368. Its totient is φ = 24659712.
The previous prime is 80144683. The next prime is 80144689. The reversal of 80144688 is 88644108.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is not an unprimeable number, because it can be changed into a prime (80144683) 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, 63595 + ... + 64842.
Almost surely, 280144688 is an apocalyptic number.
It is an amenable number.
80144688 is an abundant number, since it is smaller than the sum of its proper divisors (142823680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80144688 is a wasteful number, since it uses less digits than its factorization.
80144688 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 128461 (or 128455 counting only the distinct ones).
The product of its (nonzero) digits is 49152, while the sum is 39.
The square root of 80144688 is about 8952.3565612636. The cubic root of 80144688 is about 431.1465489305.
The spelling of 80144688 in words is "eighty million, one hundred forty-four thousand, six hundred eighty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •