Base | Representation |
---|---|
bin | 1001100101000… |
… | …11100101001001 |
3 | 12121012210200000 |
4 | 10302203211021 |
5 | 131033034201 |
6 | 11550233213 |
7 | 1664030652 |
oct | 462434511 |
9 | 177183600 |
10 | 80361801 |
11 | 413a9013 |
12 | 22ab5809 |
13 | 13858c80 |
14 | a95c529 |
15 | 70c5d86 |
hex | 4ca3949 |
80361801 has 24 divisors (see below), whose sum is σ = 129642240. Its totient is φ = 49451472.
The previous prime is 80361779. The next prime is 80361803. The reversal of 80361801 is 10816308.
It is not a de Polignac number, because 80361801 - 29 = 80361289 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (80361803) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9561 + ... + 15878.
It is an arithmetic number, because the mean of its divisors is an integer number (5401760).
Almost surely, 280361801 is an apocalyptic number.
80361801 is a gapful number since it is divisible by the number (81) formed by its first and last digit.
It is an amenable number.
80361801 is a deficient number, since it is larger than the sum of its proper divisors (49280439).
80361801 is a wasteful number, since it uses less digits than its factorization.
80361801 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25467 (or 25455 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 27.
The square root of 80361801 is about 8964.4743850379. The cubic root of 80361801 is about 431.5355250935.
The spelling of 80361801 in words is "eighty million, three hundred sixty-one thousand, eight hundred one".
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