Base | Representation |
---|---|
bin | 11100000011010111… |
… | …101001110100100100 |
3 | 2212202012112202021010 |
4 | 130003113221310210 |
5 | 443142023201312 |
6 | 21500524022220 |
7 | 2114301565611 |
oct | 340327516444 |
9 | 85665482233 |
10 | 30121303332 |
11 | 1185776601a |
12 | 5a07691970 |
13 | 2ac0557313 |
14 | 165a5c3508 |
15 | bb45da93c |
hex | 7035e9d24 |
30121303332 has 48 divisors (see below), whose sum is σ = 73538906112. Its totient is φ = 9577692960.
The previous prime is 30121303321. The next prime is 30121303337. The reversal of 30121303332 is 23330312103.
It is a junction number, because it is equal to n+sod(n) for n = 30121303299 and 30121303308.
It is not an unprimeable number, because it can be changed into a prime (30121303337) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47394 + ... + 249977.
It is an arithmetic number, because the mean of its divisors is an integer number (1532060544).
Almost surely, 230121303332 is an apocalyptic number.
It is an amenable number.
30121303332 is an abundant number, since it is smaller than the sum of its proper divisors (43417602780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30121303332 is a wasteful number, since it uses less digits than its factorization.
30121303332 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 297768 (or 297766 counting only the distinct ones).
The product of its (nonzero) digits is 972, while the sum is 21.
Adding to 30121303332 its reverse (23330312103), we get a palindrome (53451615435).
The spelling of 30121303332 in words is "thirty billion, one hundred twenty-one million, three hundred three thousand, three hundred thirty-two".
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