Base | Representation |
---|---|
bin | 11011111101011001… |
… | …110010100010001010 |
3 | 2212111020011222022200 |
4 | 123331121302202022 |
5 | 442440411400020 |
6 | 21442550301030 |
7 | 2111644663314 |
oct | 337531624212 |
9 | 85436158280 |
10 | 30021200010 |
11 | 118062039aa |
12 | 599a057776 |
13 | 2aa58a8799 |
14 | 164b1a67b4 |
15 | baa915590 |
hex | 6fd67288a |
30021200010 has 48 divisors (see below), whose sum is σ = 79043178240. Its totient is φ = 7904314080.
The previous prime is 30021199991. The next prime is 30021200051. The reversal of 30021200010 is 1000212003.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 30021199965 and 30021200001.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2104086 + ... + 2118305.
It is an arithmetic number, because the mean of its divisors is an integer number (1646732880).
Almost surely, 230021200010 is an apocalyptic number.
30021200010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30021200010 is an abundant number, since it is smaller than the sum of its proper divisors (49021978230).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30021200010 is a wasteful number, since it uses less digits than its factorization.
30021200010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4222483 (or 4222480 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 9.
Adding to 30021200010 its reverse (1000212003), we get a palindrome (31021412013).
The spelling of 30021200010 in words is "thirty billion, twenty-one million, two hundred thousand, ten".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •