Base | Representation |
---|---|
bin | 11100001000110010… |
… | …111001100111110100 |
3 | 2212222112211111011000 |
4 | 130020302321213310 |
5 | 443333324111040 |
6 | 21513535043300 |
7 | 2116455404433 |
oct | 341062714764 |
9 | 85875744130 |
10 | 30212332020 |
11 | 118a408a242 |
12 | 5a32070530 |
13 | 2b06379550 |
14 | 166871b11a |
15 | bbc5bc130 |
hex | 708cb99f4 |
30212332020 has 192 divisors, whose sum is σ = 101604142080. Its totient is φ = 7408972800.
The previous prime is 30212331971. The next prime is 30212332061. The reversal of 30212332020 is 2023321203.
It is a happy number.
30212332020 is a `hidden beast` number, since 302 + 1 + 23 + 320 + 20 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 30212331984 and 30212332002.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1894480 + ... + 1910360.
It is an arithmetic number, because the mean of its divisors is an integer number (529188240).
Almost surely, 230212332020 is an apocalyptic number.
30212332020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30212332020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50802071040).
30212332020 is an abundant number, since it is smaller than the sum of its proper divisors (71391810060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30212332020 is a wasteful number, since it uses less digits than its factorization.
30212332020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16183 (or 16175 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
Adding to 30212332020 its reverse (2023321203), we get a palindrome (32235653223).
The spelling of 30212332020 in words is "thirty billion, two hundred twelve million, three hundred thirty-two thousand, twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •