Base | Representation |
---|---|
bin | 1001100101001… |
… | …11110010111101 |
3 | 12121020200100120 |
4 | 10302213302331 |
5 | 131034112234 |
6 | 11550445153 |
7 | 1664132211 |
oct | 462476275 |
9 | 177220316 |
10 | 80379069 |
11 | 4140aa91 |
12 | 22b037b9 |
13 | 13863aa4 |
14 | a964941 |
15 | 70cb049 |
hex | 4ca7cbd |
80379069 has 8 divisors (see below), whose sum is σ = 107237952. Its totient is φ = 53553120.
The previous prime is 80379067. The next prime is 80379119. The reversal of 80379069 is 96097308.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80379069 - 21 = 80379067 is a prime.
It is a super-2 number, since 2×803790692 = 12921589466613522, which contains 22 as substring.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 80379069.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80379067) 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, 1824 + ... + 12809.
It is an arithmetic number, because the mean of its divisors is an integer number (13404744).
Almost surely, 280379069 is an apocalyptic number.
It is an amenable number.
80379069 is a deficient number, since it is larger than the sum of its proper divisors (26858883).
80379069 is a wasteful number, since it uses less digits than its factorization.
80379069 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16467.
The product of its (nonzero) digits is 81648, while the sum is 42.
The square root of 80379069 is about 8965.4374684117. The cubic root of 80379069 is about 431.5664320736.
The spelling of 80379069 in words is "eighty million, three hundred seventy-nine thousand, sixty-nine".
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