Base | Representation |
---|---|
bin | 111001010010… |
… | …0001110101110 |
3 | 2002111211021110 |
4 | 1302210032232 |
5 | 30142022224 |
6 | 2551412450 |
7 | 513163140 |
oct | 162441656 |
9 | 62454243 |
10 | 30032814 |
11 | 15a53109 |
12 | a084126 |
13 | 62b6bc6 |
14 | 3dbac90 |
15 | 2983929 |
hex | 1ca43ae |
30032814 has 32 divisors (see below), whose sum is σ = 68832000. Its totient is φ = 8557632.
The previous prime is 30032813. The next prime is 30032837. The reversal of 30032814 is 41823003.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30032813) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20242 + ... + 21674.
It is an arithmetic number, because the mean of its divisors is an integer number (2151000).
Almost surely, 230032814 is an apocalyptic number.
30032814 is an abundant number, since it is smaller than the sum of its proper divisors (38799186).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30032814 is a wasteful number, since it uses less digits than its factorization.
30032814 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1944.
The product of its (nonzero) digits is 576, while the sum is 21.
The square root of 30032814 is about 5480.2202510483. The cubic root of 30032814 is about 310.8364990122.
Adding to 30032814 its reverse (41823003), we get a palindrome (71855817).
The spelling of 30032814 in words is "thirty million, thirty-two thousand, eight hundred fourteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •