Base | Representation |
---|---|
bin | 1000101000111… |
… | …11010001100001 |
3 | 12001101100122120 |
4 | 10110133101201 |
5 | 122023323331 |
6 | 11105254453 |
7 | 1540032330 |
oct | 424372141 |
9 | 161340576 |
10 | 72479841 |
11 | 37a051a5 |
12 | 20334429 |
13 | 120294a5 |
14 | 98a9d17 |
15 | 656a796 |
hex | 451f461 |
72479841 has 16 divisors (see below), whose sum is σ = 113140608. Its totient is φ = 40406400.
The previous prime is 72479839. The next prime is 72479861. The reversal of 72479841 is 14897427.
It is a happy number.
It is not a de Polignac number, because 72479841 - 21 = 72479839 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 72479793 and 72479802.
It is not an unprimeable number, because it can be changed into a prime (72479861) 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, 41230 + ... + 42951.
It is an arithmetic number, because the mean of its divisors is an integer number (7071288).
Almost surely, 272479841 is an apocalyptic number.
It is an amenable number.
72479841 is a deficient number, since it is larger than the sum of its proper divisors (40660767).
72479841 is a wasteful number, since it uses less digits than its factorization.
72479841 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 84232.
The product of its digits is 112896, while the sum is 42.
The square root of 72479841 is about 8513.5093234224. The cubic root of 72479841 is about 416.9388945997.
The spelling of 72479841 in words is "seventy-two million, four hundred seventy-nine thousand, eight hundred forty-one".
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