Base | Representation |
---|---|
bin | 1001100101101… |
… | …10011000010111 |
3 | 12121100201022002 |
4 | 10302312120113 |
5 | 131043020212 |
6 | 11552025515 |
7 | 1664501321 |
oct | 462663027 |
9 | 177321262 |
10 | 80438807 |
11 | 41450959 |
12 | 22b3229b |
13 | 13885037 |
14 | a97c611 |
15 | 70ddac2 |
hex | 4cb6617 |
80438807 has 4 divisors (see below), whose sum is σ = 80485560. Its totient is φ = 80392056.
The previous prime is 80438803. The next prime is 80438821. The reversal of 80438807 is 70883408.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 80438807 - 22 = 80438803 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80438803) 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, 20693 + ... + 24270.
It is an arithmetic number, because the mean of its divisors is an integer number (20121390).
Almost surely, 280438807 is an apocalyptic number.
80438807 is a deficient number, since it is larger than the sum of its proper divisors (46753).
80438807 is a wasteful number, since it uses less digits than its factorization.
80438807 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 46752.
The product of its (nonzero) digits is 43008, while the sum is 38.
The square root of 80438807 is about 8968.7684215839. The cubic root of 80438807 is about 431.6733194829.
The spelling of 80438807 in words is "eighty million, four hundred thirty-eight thousand, eight hundred seven".
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