Base | Representation |
---|---|
bin | 111001011110… |
… | …0100110010110 |
3 | 2002200220012100 |
4 | 1302330212112 |
5 | 30203221010 |
6 | 2553502530 |
7 | 514060143 |
oct | 162744626 |
9 | 62626170 |
10 | 30132630 |
11 | 16011100 |
12 | a111a46 |
13 | 6320478 |
14 | 40053ca |
15 | 29a32c0 |
hex | 1cbc996 |
30132630 has 72 divisors (see below), whose sum is σ = 86145696. Its totient is φ = 7302240.
The previous prime is 30132629. The next prime is 30132631. The reversal of 30132630 is 3623103.
It is a happy number.
30132630 is a `hidden beast` number, since 3 + 0 + 1 + 32 + 630 = 666.
It is an interprime number because it is at equal distance from previous prime (30132629) and next prime (30132631).
It is a super-3 number, since 3×301326303 (a number of 23 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30132631) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9507 + ... + 12273.
It is an arithmetic number, because the mean of its divisors is an integer number (1196468).
Almost surely, 230132630 is an apocalyptic number.
30132630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 30132630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43072848).
30132630 is an abundant number, since it is smaller than the sum of its proper divisors (56013066).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30132630 is a wasteful number, since it uses less digits than its factorization.
30132630 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2802 (or 2788 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
The square root of 30132630 is about 5489.3196299724. The cubic root of 30132630 is about 311.1804799492.
Adding to 30132630 its reverse (3623103), we get a palindrome (33755733).
The spelling of 30132630 in words is "thirty million, one hundred thirty-two thousand, six hundred thirty".
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