Base | Representation |
---|---|
bin | 11100001001111111… |
… | …000111110101101101 |
3 | 2220000221102122011121 |
4 | 130021333013311231 |
5 | 443403433010242 |
6 | 21515531220541 |
7 | 2120120264542 |
oct | 341177076555 |
9 | 86027378147 |
10 | 30232313197 |
11 | 11904397409 |
12 | 5a388a7751 |
13 | 2b0a554228 |
14 | 166b23cbc9 |
15 | bbe217667 |
hex | 709fc7d6d |
30232313197 has 2 divisors, whose sum is σ = 30232313198. Its totient is φ = 30232313196.
The previous prime is 30232313191. The next prime is 30232313249. The reversal of 30232313197 is 79131323203.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 24366897801 + 5865415396 = 156099^2 + 76586^2 .
It is an emirp because it is prime and its reverse (79131323203) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30232313197 is a prime.
It is a super-2 number, since 2×302323131972 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30232313191) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15116156598 + 15116156599.
It is an arithmetic number, because the mean of its divisors is an integer number (15116156599).
Almost surely, 230232313197 is an apocalyptic number.
It is an amenable number.
30232313197 is a deficient number, since it is larger than the sum of its proper divisors (1).
30232313197 is an equidigital number, since it uses as much as digits as its factorization.
30232313197 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 20412, while the sum is 34.
The spelling of 30232313197 in words is "thirty billion, two hundred thirty-two million, three hundred thirteen thousand, one hundred ninety-seven".
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