Base | Representation |
---|---|
bin | 1001101001100… |
… | …01110100101110 |
3 | 12122022101212212 |
4 | 10310301310232 |
5 | 131210210210 |
6 | 12010530422 |
7 | 2002005410 |
oct | 464616456 |
9 | 178271785 |
10 | 80944430 |
11 | 41766826 |
12 | 23136a12 |
13 | 13a01218 |
14 | aa709b0 |
15 | 718d805 |
hex | 4d31d2e |
80944430 has 48 divisors (see below), whose sum is σ = 169749216. Its totient is φ = 27220800.
The previous prime is 80944421. The next prime is 80944439. The reversal of 80944430 is 3444908.
It is an interprime number because it is at equal distance from previous prime (80944421) and next prime (80944439).
It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80944439) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 756437 + ... + 756543.
It is an arithmetic number, because the mean of its divisors is an integer number (3536442).
Almost surely, 280944430 is an apocalyptic number.
80944430 is an abundant number, since it is smaller than the sum of its proper divisors (88804786).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80944430 is a wasteful number, since it uses less digits than its factorization.
80944430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 329 (or 222 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 32.
The square root of 80944430 is about 8996.9122480993. The cubic root of 80944430 is about 432.5759030137.
The spelling of 80944430 in words is "eighty million, nine hundred forty-four thousand, four hundred thirty".
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