Base | Representation |
---|---|
bin | 1001100010101… |
… | …00101010000010 |
3 | 12120121101020000 |
4 | 10301110222002 |
5 | 130442213110 |
6 | 11535300430 |
7 | 1661213325 |
oct | 461245202 |
9 | 176541200 |
10 | 80038530 |
11 | 411a8150 |
12 | 2297a716 |
13 | 13774aa0 |
14 | a8b67bc |
15 | 70601c0 |
hex | 4c54a82 |
80038530 has 160 divisors (see below), whose sum is σ = 253205568. Its totient is φ = 17884800.
The previous prime is 80038493. The next prime is 80038531. The reversal of 80038530 is 3583008.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 80038494 and 80038503.
It is not an unprimeable number, because it can be changed into a prime (80038531) by changing a digit.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 115485 + ... + 116175.
Almost surely, 280038530 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80038530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126602784).
80038530 is an abundant number, since it is smaller than the sum of its proper divisors (173167038).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80038530 is a wasteful number, since it uses less digits than its factorization.
80038530 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 734 (or 725 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 27.
The square root of 80038530 is about 8946.4255431988. The cubic root of 80038530 is about 430.9561022110.
The spelling of 80038530 in words is "eighty million, thirty-eight thousand, five hundred thirty".
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