Base | Representation |
---|---|
bin | 11100001001011000… |
… | …100111101010111000 |
3 | 2220000020102211212000 |
4 | 130021120213222320 |
5 | 443343342014320 |
6 | 21514531021000 |
7 | 2116635426312 |
oct | 341130475270 |
9 | 86006384760 |
10 | 30222219960 |
11 | 118a9723199 |
12 | 5a3543a760 |
13 | 2b0842c0ba |
14 | 1669b727b2 |
15 | bbd3c1c90 |
hex | 709627ab8 |
30222219960 has 128 divisors (see below), whose sum is σ = 100976025600. Its totient is φ = 8040435840.
The previous prime is 30222219947. The next prime is 30222219961. The reversal of 30222219960 is 6991222203.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30222219961) 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 31 ways as a sum of consecutive naturals, for example, 433017 + ... + 497943.
It is an arithmetic number, because the mean of its divisors is an integer number (788875200).
Almost surely, 230222219960 is an apocalyptic number.
30222219960 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 30222219960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50488012800).
30222219960 is an abundant number, since it is smaller than the sum of its proper divisors (70753805640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30222219960 is a wasteful number, since it uses less digits than its factorization.
30222219960 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65378 (or 65368 counting only the distinct ones).
The product of its (nonzero) digits is 23328, while the sum is 36.
The spelling of 30222219960 in words is "thirty billion, two hundred twenty-two million, two hundred nineteen thousand, nine hundred sixty".
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