Base | Representation |
---|---|
bin | 111111111110001… |
… | …1001010111011010 |
3 | 12112121002110220100 |
4 | 1333330121113122 |
5 | 13344003221340 |
6 | 552555440230 |
7 | 104123165052 |
oct | 17774312732 |
9 | 5477073810 |
10 | 2146538970 |
11 | a01735554 |
12 | 4baa56076 |
13 | 282933b04 |
14 | 165122562 |
15 | c86ab830 |
hex | 7ff195da |
2146538970 has 24 divisors (see below), whose sum is σ = 5581001556. Its totient is φ = 572410368.
The previous prime is 2146538959. The next prime is 2146538971. The reversal of 2146538970 is 798356412.
2146538970 is a `hidden beast` number, since 2 + 1 + 46 + 538 + 9 + 70 = 666.
2146538970 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 1958328009 + 188210961 = 44253^2 + 13719^2 .
It is a Harshad number since it is a multiple of its sum of digits (45).
2146538970 is strictly pandigital in base 10.
It is not an unprimeable number, because it can be changed into a prime (2146538971) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11925127 + ... + 11925306.
It is a 1-persistent number, because it is pandigital, but 2⋅2146538970 = 4293077940 is not.
Almost surely, 22146538970 is an apocalyptic number.
2146538970 is an abundant number, since it is smaller than the sum of its proper divisors (3434462586).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2146538970 is a wasteful number, since it uses less digits than its factorization.
2146538970 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23850446 (or 23850443 counting only the distinct ones).
The product of its (nonzero) digits is 362880, while the sum is 45.
The square root of 2146538970 is about 46330.7561993111. The cubic root of 2146538970 is about 1289.9699470194.
The spelling of 2146538970 in words is "two billion, one hundred forty-six million, five hundred thirty-eight thousand, nine hundred seventy".
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