Base | Representation |
---|---|
bin | 1000000111000101… |
… | …1110010011110101 |
3 | 12121201211202011201 |
4 | 2001301132103311 |
5 | 13424332330234 |
6 | 1000013332501 |
7 | 104645102350 |
oct | 20161362365 |
9 | 5551752151 |
10 | 2177230069 |
11 | a17a981a3 |
12 | 509197131 |
13 | 2890bb521 |
14 | 169231297 |
15 | cb220314 |
hex | 81c5e4f5 |
2177230069 has 16 divisors (see below), whose sum is σ = 2641863168. Its totient is φ = 1751599872.
The previous prime is 2177230067. The next prime is 2177230147. The reversal of 2177230069 is 9600327712.
2177230069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 2177230069 - 21 = 2177230067 is a prime.
It is a super-2 number, since 2×21772300692 = 9480661546715489522, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2177230067) 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, 18747 + ... + 68599.
It is an arithmetic number, because the mean of its divisors is an integer number (165116448).
Almost surely, 22177230069 is an apocalyptic number.
It is an amenable number.
2177230069 is a deficient number, since it is larger than the sum of its proper divisors (464633099).
2177230069 is a wasteful number, since it uses less digits than its factorization.
2177230069 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50244.
The product of its (nonzero) digits is 31752, while the sum is 37.
The square root of 2177230069 is about 46660.7979893186. The cubic root of 2177230069 is about 1296.0888501312.
The spelling of 2177230069 in words is "two billion, one hundred seventy-seven million, two hundred thirty thousand, sixty-nine".
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