Base | Representation |
---|---|
bin | 11100001001111111… |
… | …000101001011110000 |
3 | 2220000221102002020202 |
4 | 130021333011023300 |
5 | 443403432133240 |
6 | 21515531054332 |
7 | 2120120221043 |
oct | 341177051360 |
9 | 86027362222 |
10 | 30232302320 |
11 | 1190438a220 |
12 | 5a388a13a8 |
13 | 2b0a54c2ac |
14 | 166b238c5a |
15 | bbe214315 |
hex | 709fc52f0 |
30232302320 has 80 divisors (see below), whose sum is σ = 76708840320. Its totient is φ = 10989446400.
The previous prime is 30232302319. The next prime is 30232302323. The reversal of 30232302320 is 2320323203.
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 (20).
It is a junction number, because it is equal to n+sod(n) for n = 30232302292 and 30232302301.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30232302323) 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, 3320975 + ... + 3330065.
It is an arithmetic number, because the mean of its divisors is an integer number (958860504).
Almost surely, 230232302320 is an apocalyptic number.
It is an amenable number.
30232302320 is an abundant number, since it is smaller than the sum of its proper divisors (46476538000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30232302320 is a wasteful number, since it uses less digits than its factorization.
30232302320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12894 (or 12888 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 20.
Adding to 30232302320 its reverse (2320323203), we get a palindrome (32552625523).
The spelling of 30232302320 in words is "thirty billion, two hundred thirty-two million, three hundred two thousand, three hundred twenty".
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