Base | Representation |
---|---|
bin | 110111110011111011110 |
3 | 10102220200110 |
4 | 12332133132 |
5 | 432010310 |
6 | 103110450 |
7 | 21354603 |
oct | 6763736 |
9 | 3386613 |
10 | 1828830 |
11 | 103a033 |
12 | 742426 |
13 | 4c0563 |
14 | 3586aa |
15 | 261d20 |
hex | 1be7de |
1828830 has 16 divisors (see below), whose sum is σ = 4389264. Its totient is φ = 487680.
The previous prime is 1828829. The next prime is 1828831. The reversal of 1828830 is 388281.
It is an interprime number because it is at equal distance from previous prime (1828829) and next prime (1828831).
It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 60961 = 1828830 / (1 + 8 + 2 + 8 + 8 + 3 + 0).
It is an Ulam number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1828831) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30451 + ... + 30510.
It is an arithmetic number, because the mean of its divisors is an integer number (274329).
21828830 is an apocalyptic number.
1828830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1828830 is an abundant number, since it is smaller than the sum of its proper divisors (2560434).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1828830 is a wasteful number, since it uses less digits than its factorization.
1828830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60971.
The product of its (nonzero) digits is 3072, while the sum is 30.
The square root of 1828830 is about 1352.3424122610. The cubic root of 1828830 is about 122.2900471421.
The spelling of 1828830 in words is "one million, eight hundred twenty-eight thousand, eight hundred thirty".
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