Base | Representation |
---|---|
bin | 1001100101101… |
… | …10010010011110 |
3 | 12121100200210010 |
4 | 10302312102132 |
5 | 131043012210 |
6 | 11552024050 |
7 | 1664500242 |
oct | 462662236 |
9 | 177320703 |
10 | 80438430 |
11 | 41450646 |
12 | 22b32026 |
13 | 13884b07 |
14 | a97c422 |
15 | 70dd920 |
hex | 4cb649e |
80438430 has 32 divisors (see below), whose sum is σ = 193821984. Its totient is φ = 21364736.
The previous prime is 80438411. The next prime is 80438437. The reversal of 80438430 is 3483408.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80438437) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2494 + ... + 12926.
It is an arithmetic number, because the mean of its divisors is an integer number (6056937).
Almost surely, 280438430 is an apocalyptic number.
80438430 is an abundant number, since it is smaller than the sum of its proper divisors (113383554).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80438430 is a wasteful number, since it uses less digits than its factorization.
80438430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10700.
The product of its (nonzero) digits is 9216, while the sum is 30.
The square root of 80438430 is about 8968.7474041808. The cubic root of 80438430 is about 431.6726450941.
The spelling of 80438430 in words is "eighty million, four hundred thirty-eight thousand, four hundred thirty".
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