Base | Representation |
---|---|
bin | 11011011011001010001010 |
3 | 111112020122002 |
4 | 123123022022 |
5 | 3320023010 |
6 | 414031002 |
7 | 115051364 |
oct | 33331212 |
9 | 14466562 |
10 | 7189130 |
11 | 4070333 |
12 | 24a8462 |
13 | 1649330 |
14 | d51d34 |
15 | 9701a5 |
hex | 6db28a |
7189130 has 32 divisors (see below), whose sum is σ = 14760144. Its totient is φ = 2497536.
The previous prime is 7189123. The next prime is 7189151. The reversal of 7189130 is 319817.
It can be written as a sum of positive squares in 8 ways, for example, as 5248681 + 1940449 = 2291^2 + 1393^2 .
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 7189093 and 7189102.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584 + ... + 3836.
Almost surely, 27189130 is an apocalyptic number.
7189130 is an abundant number, since it is smaller than the sum of its proper divisors (7571014).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7189130 is a wasteful number, since it uses less digits than its factorization.
7189130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3290.
The product of its (nonzero) digits is 1512, while the sum is 29.
The square root of 7189130 is about 2681.2553030251. The cubic root of 7189130 is about 193.0006532592. Note that the first 3 decimals are identical.
The spelling of 7189130 in words is "seven million, one hundred eighty-nine thousand, one hundred thirty".
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