Base | Representation |
---|---|
bin | 11100000100000001… |
… | …010000101000101110 |
3 | 2212202222001212201000 |
4 | 130010001100220232 |
5 | 443202321211342 |
6 | 21501553501130 |
7 | 2114463363252 |
oct | 340401205056 |
9 | 85688055630 |
10 | 30132210222 |
11 | 11862935584 |
12 | 5a0b2717a6 |
13 | 2ac28a58ba |
14 | 165bc22262 |
15 | bb554244c |
hex | 704050a2e |
30132210222 has 32 divisors (see below), whose sum is σ = 66997416960. Its totient is φ = 10038527640.
The previous prime is 30132210197. The next prime is 30132210223. The reversal of 30132210222 is 22201223103.
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 = 30132210195 and 30132210204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30132210223) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54604 + ... + 251487.
It is an arithmetic number, because the mean of its divisors is an integer number (2093669280).
Almost surely, 230132210222 is an apocalyptic number.
30132210222 is an abundant number, since it is smaller than the sum of its proper divisors (36865206738).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30132210222 is a wasteful number, since it uses less digits than its factorization.
30132210222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 307925 (or 307919 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 30132210222 its reverse (22201223103), we get a palindrome (52333433325).
The spelling of 30132210222 in words is "thirty billion, one hundred thirty-two million, two hundred ten thousand, two hundred twenty-two".
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