Base | Representation |
---|---|
bin | 1000100110110… |
… | …11010010100000 |
3 | 12000212012200001 |
4 | 10103123102200 |
5 | 121440421001 |
6 | 11055305344 |
7 | 1534462432 |
oct | 423332240 |
9 | 160765601 |
10 | 72201376 |
11 | 37834a65 |
12 | 2021b254 |
13 | 11c5c810 |
14 | 9836652 |
15 | 6513001 |
hex | 44db4a0 |
72201376 has 24 divisors (see below), whose sum is σ = 153081684. Its totient is φ = 33323520.
The previous prime is 72201299. The next prime is 72201383. The reversal of 72201376 is 67310227.
It can be written as a sum of positive squares in 2 ways, for example, as 61152400 + 11048976 = 7820^2 + 3324^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86365 + ... + 87196.
Almost surely, 272201376 is an apocalyptic number.
It is an amenable number.
72201376 is an abundant number, since it is smaller than the sum of its proper divisors (80880308).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72201376 is a wasteful number, since it uses less digits than its factorization.
72201376 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 173584 (or 173576 counting only the distinct ones).
The product of its (nonzero) digits is 3528, while the sum is 28.
The square root of 72201376 is about 8497.1392833118. The cubic root of 72201376 is about 416.4042544681.
The spelling of 72201376 in words is "seventy-two million, two hundred one thousand, three hundred seventy-six".
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