Base | Representation |
---|---|
bin | 1000100110111… |
… | …00100111011000 |
3 | 12000212111010020 |
4 | 10103130213120 |
5 | 121441104213 |
6 | 11055350440 |
7 | 1534514322 |
oct | 423344730 |
9 | 160774106 |
10 | 72206808 |
11 | 37839053 |
12 | 20222420 |
13 | 11c6212b |
14 | 9838612 |
15 | 6514923 |
hex | 44dc9d8 |
72206808 has 16 divisors (see below), whose sum is σ = 180517080. Its totient is φ = 24068928.
The previous prime is 72206779. The next prime is 72206831. The reversal of 72206808 is 80860227.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504285 + ... + 1504332.
Almost surely, 272206808 is an apocalyptic number.
It is an amenable number.
72206808 is an abundant number, since it is smaller than the sum of its proper divisors (108310272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72206808 is a wasteful number, since it uses less digits than its factorization.
72206808 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3008626 (or 3008622 counting only the distinct ones).
The product of its (nonzero) digits is 10752, while the sum is 33.
The square root of 72206808 is about 8497.4589142873. The cubic root of 72206808 is about 416.4146967953.
It can be divided in two parts, 7220 and 6808, that added together give a triangular number (14028 = T167).
The spelling of 72206808 in words is "seventy-two million, two hundred six thousand, eight hundred eight".
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