Base | Representation |
---|---|
bin | 1001100101010… |
… | …10101100011101 |
3 | 12121021021122021 |
4 | 10302222230131 |
5 | 131040002231 |
6 | 11551020141 |
7 | 1664211631 |
oct | 462525435 |
9 | 177237567 |
10 | 80390941 |
11 | 414189a4 |
12 | 22b0a651 |
13 | 13869307 |
14 | a968dc1 |
15 | 70ce811 |
hex | 4caab1d |
80390941 has 4 divisors (see below), whose sum is σ = 81294300. Its totient is φ = 79487584.
The previous prime is 80390923. The next prime is 80391019. The reversal of 80390941 is 14909308.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 18705625 + 61685316 = 4325^2 + 7854^2 .
It is a cyclic number.
It is not a de Polignac number, because 80390941 - 225 = 46836509 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 80390897 and 80390906.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80390341) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451546 + ... + 451723.
It is an arithmetic number, because the mean of its divisors is an integer number (20323575).
Almost surely, 280390941 is an apocalyptic number.
It is an amenable number.
80390941 is a deficient number, since it is larger than the sum of its proper divisors (903359).
80390941 is an equidigital number, since it uses as much as digits as its factorization.
80390941 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 903358.
The product of its (nonzero) digits is 7776, while the sum is 34.
The square root of 80390941 is about 8966.0995421644. The cubic root of 80390941 is about 431.5876785022.
The spelling of 80390941 in words is "eighty million, three hundred ninety thousand, nine hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.063 sec. • engine limits •