Base | Representation |
---|---|
bin | 100001101000101000… |
… | …1000110111111111111 |
3 | 20220102212020111110222 |
4 | 1003101101012333333 |
5 | 2140411440244444 |
6 | 53103204051555 |
7 | 5134636161362 |
oct | 1032121067777 |
9 | 226385214428 |
10 | 72230399999 |
11 | 286a61a565a |
12 | 11bb9993bbb |
13 | 6a71561074 |
14 | 36d2d280d9 |
15 | 1d2b334eee |
hex | 10d1446fff |
72230399999 has 4 divisors (see below), whose sum is σ = 72647916936. Its totient is φ = 71812883064.
The previous prime is 72230399971. The next prime is 72230400029. The reversal of 72230399999 is 99999303227.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 72230399999 - 224 = 72213622783 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72230399929) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208758209 + ... + 208758554.
It is an arithmetic number, because the mean of its divisors is an integer number (18161979234).
Almost surely, 272230399999 is an apocalyptic number.
72230399999 is a deficient number, since it is larger than the sum of its proper divisors (417516937).
72230399999 is a wasteful number, since it uses less digits than its factorization.
72230399999 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 417516936.
The product of its (nonzero) digits is 14880348, while the sum is 62.
The spelling of 72230399999 in words is "seventy-two billion, two hundred thirty million, three hundred ninety-nine thousand, nine hundred ninety-nine".
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