Base | Representation |
---|---|
bin | 11100000100100110… |
… | …101001011100111101 |
3 | 2212210122111211010002 |
4 | 130010212221130331 |
5 | 443212323324242 |
6 | 21502543524045 |
7 | 2114642603444 |
oct | 340446513475 |
9 | 85718454102 |
10 | 30142011197 |
11 | 1186841a161 |
12 | 5a125b9625 |
13 | 2ac49279ac |
14 | 165d253d5b |
15 | bb632b432 |
hex | 7049a973d |
30142011197 has 2 divisors, whose sum is σ = 30142011198. Its totient is φ = 30142011196.
The previous prime is 30142011181. The next prime is 30142011203. The reversal of 30142011197 is 79111024103.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 18870791641 + 11271219556 = 137371^2 + 106166^2 .
It is an emirp because it is prime and its reverse (79111024103) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30142011197 - 24 = 30142011181 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30142011167) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071005598 + 15071005599.
It is an arithmetic number, because the mean of its divisors is an integer number (15071005599).
Almost surely, 230142011197 is an apocalyptic number.
It is an amenable number.
30142011197 is a deficient number, since it is larger than the sum of its proper divisors (1).
30142011197 is an equidigital number, since it uses as much as digits as its factorization.
30142011197 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1512, while the sum is 29.
The spelling of 30142011197 in words is "thirty billion, one hundred forty-two million, eleven thousand, one hundred ninety-seven".
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