Base | Representation |
---|---|
bin | 1000100101110… |
… | …10110001111111 |
3 | 12000121110000110 |
4 | 10102322301333 |
5 | 121422140343 |
6 | 11052401103 |
7 | 1533366303 |
oct | 422726177 |
9 | 160543013 |
10 | 72068223 |
11 | 37753a17 |
12 | 20176193 |
13 | 11c14026 |
14 | 97ddd03 |
15 | 64d8833 |
hex | 44bac7f |
72068223 has 16 divisors (see below), whose sum is σ = 100947456. Its totient is φ = 45645600.
The previous prime is 72068221. The next prime is 72068231. The reversal of 72068223 is 32286027.
It is not a de Polignac number, because 72068223 - 21 = 72068221 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72068221) 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, 6961 + ... + 13877.
It is an arithmetic number, because the mean of its divisors is an integer number (6309216).
Almost surely, 272068223 is an apocalyptic number.
72068223 is a deficient number, since it is larger than the sum of its proper divisors (28879233).
72068223 is a wasteful number, since it uses less digits than its factorization.
72068223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7094.
The product of its (nonzero) digits is 8064, while the sum is 30.
The square root of 72068223 is about 8489.3005012192. The cubic root of 72068223 is about 416.1481208701.
The spelling of 72068223 in words is "seventy-two million, sixty-eight thousand, two hundred twenty-three".
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