Base | Representation |
---|---|
bin | 1000101010110… |
… | …11101001110110 |
3 | 12001211220220110 |
4 | 10111123221312 |
5 | 122104232113 |
6 | 11114443450 |
7 | 1542112350 |
oct | 425335166 |
9 | 161756813 |
10 | 72727158 |
11 | 38063a99 |
12 | 20433586 |
13 | 120b4c2a |
14 | 99320d0 |
15 | 65b8bc3 |
hex | 455ba76 |
72727158 has 32 divisors (see below), whose sum is σ = 166553856. Its totient is φ = 20739168.
The previous prime is 72727141. The next prime is 72727159. The reversal of 72727158 is 85172727.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72727159) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25660 + ... + 28352.
It is an arithmetic number, because the mean of its divisors is an integer number (5204808).
Almost surely, 272727158 is an apocalyptic number.
72727158 is an abundant number, since it is smaller than the sum of its proper divisors (93826698).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72727158 is a wasteful number, since it uses less digits than its factorization.
72727158 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3348.
The product of its digits is 54880, while the sum is 39.
The square root of 72727158 is about 8528.0219277392. The cubic root of 72727158 is about 417.4125849950.
The spelling of 72727158 in words is "seventy-two million, seven hundred twenty-seven thousand, one hundred fifty-eight".
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