Base | Representation |
---|---|
bin | 1111110000000010100010 |
3 | 21202202211100 |
4 | 33300002202 |
5 | 2024111210 |
6 | 224255230 |
7 | 50044461 |
oct | 17600242 |
9 | 7682740 |
10 | 4128930 |
11 | 2370143 |
12 | 1471516 |
13 | b17470 |
14 | 7969d8 |
15 | 5685c0 |
hex | 3f00a2 |
4128930 has 48 divisors (see below), whose sum is σ = 11564280. Its totient is φ = 1016064.
The previous prime is 4128913. The next prime is 4128931. The reversal of 4128930 is 398214.
It can be written as a sum of positive squares in 4 ways, for example, as 1610361 + 2518569 = 1269^2 + 1587^2 .
It is a junction number, because it is equal to n+sod(n) for n = 4128894 and 4128903.
It is not an unprimeable number, because it can be changed into a prime (4128931) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 595 + ... + 2934.
Almost surely, 24128930 is an apocalyptic number.
4128930 is an abundant number, since it is smaller than the sum of its proper divisors (7435350).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4128930 is a wasteful number, since it uses less digits than its factorization.
4128930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3555 (or 3552 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
The square root of 4128930 is about 2031.9768699471. The cubic root of 4128930 is about 160.4276320909.
The spelling of 4128930 in words is "four million, one hundred twenty-eight thousand, nine hundred thirty".
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