Base | Representation |
---|---|
bin | 100101011101000010… |
… | …1001001100101000100 |
3 | 21200121101201120112221 |
4 | 1022322011021211010 |
5 | 2304210404322320 |
6 | 100541042222124 |
7 | 5545106653255 |
oct | 1127205114504 |
9 | 250541646487 |
10 | 80431323460 |
11 | 31124426854 |
12 | 13708354944 |
13 | 777a5c28b7 |
14 | 3c70174b2c |
15 | 215b2bd3aa |
hex | 12ba149944 |
80431323460 has 24 divisors (see below), whose sum is σ = 170039381400. Its totient is φ = 31956605184.
The previous prime is 80431323439. The next prime is 80431323481. The reversal of 80431323460 is 6432313408.
It is an interprime number because it is at equal distance from previous prime (80431323439) and next prime (80431323481).
It can be written as a sum of positive squares in 4 ways, for example, as 881377344 + 79549946116 = 29688^2 + 282046^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13492209 + ... + 13498168.
It is an arithmetic number, because the mean of its divisors is an integer number (7084974225).
Almost surely, 280431323460 is an apocalyptic number.
It is an amenable number.
80431323460 is an abundant number, since it is smaller than the sum of its proper divisors (89608057940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80431323460 is a wasteful number, since it uses less digits than its factorization.
80431323460 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26990535 (or 26990533 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 34.
Adding to 80431323460 its reverse (6432313408), we get a palindrome (86863636868).
The spelling of 80431323460 in words is "eighty billion, four hundred thirty-one million, three hundred twenty-three thousand, four hundred sixty".
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