Base | Representation |
---|---|
bin | 1001100011110… |
… | …11011001110100 |
3 | 12120220102221000 |
4 | 10301323121310 |
5 | 131012302421 |
6 | 11542523300 |
7 | 1662444120 |
oct | 461733164 |
9 | 176812830 |
10 | 80197236 |
11 | 412a6409 |
12 | 22a36530 |
13 | 137cc0b2 |
14 | a918580 |
15 | 7092226 |
hex | 4c7b674 |
80197236 has 96 divisors (see below), whose sum is σ = 243246080. Its totient is φ = 22371552.
The previous prime is 80197231. The next prime is 80197253. The reversal of 80197236 is 63279108.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a self number, because there is not a number n which added to its sum of digits gives 80197236.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80197231) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31275 + ... + 33741.
Almost surely, 280197236 is an apocalyptic number.
80197236 is a gapful number since it is divisible by the number (86) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80197236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121623040).
80197236 is an abundant number, since it is smaller than the sum of its proper divisors (163048844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80197236 is a wasteful number, since it uses less digits than its factorization.
80197236 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2530 (or 2522 counting only the distinct ones).
The product of its (nonzero) digits is 18144, while the sum is 36.
The square root of 80197236 is about 8955.2909500474. The cubic root of 80197236 is about 431.2407574579.
The spelling of 80197236 in words is "eighty million, one hundred ninety-seven thousand, two hundred thirty-six".
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