Base | Representation |
---|---|
bin | 11100001001010001… |
… | …000010000111010000 |
3 | 2220000002200210200021 |
4 | 130021101002013100 |
5 | 443342334343440 |
6 | 21514420233224 |
7 | 2116612504042 |
oct | 341121020720 |
9 | 86002623607 |
10 | 30220231120 |
11 | 118a8594a22 |
12 | 5a3483b814 |
13 | 2b07bb3a81 |
14 | 16697b5a92 |
15 | bbd12c84a |
hex | 7094421d0 |
30220231120 has 80 divisors (see below), whose sum is σ = 75355712640. Its totient is φ = 11235773952.
The previous prime is 30220231103. The next prime is 30220231121. The reversal of 30220231120 is 2113202203.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a junction number, because it is equal to n+sod(n) for n = 30220231094 and 30220231103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30220231121) 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, 107004 + ... + 268123.
It is an arithmetic number, because the mean of its divisors is an integer number (941946408).
Almost surely, 230220231120 is an apocalyptic number.
It is an amenable number.
30220231120 is an abundant number, since it is smaller than the sum of its proper divisors (45135481520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30220231120 is a wasteful number, since it uses less digits than its factorization.
30220231120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 375212 (or 375206 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 30220231120 its reverse (2113202203), we get a palindrome (32333433323).
The spelling of 30220231120 in words is "thirty billion, two hundred twenty million, two hundred thirty-one thousand, one hundred twenty".
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