Base | Representation |
---|---|
bin | 11100001000001011… |
… | …101001100001100111 |
3 | 2212221211110201112121 |
4 | 130020023221201213 |
5 | 443323210324341 |
6 | 21512530330411 |
7 | 2116302060646 |
oct | 341013514147 |
9 | 85854421477 |
10 | 30202042471 |
11 | 118992a1587 |
12 | 5a2a729a07 |
13 | 2b041b5c63 |
14 | 16671dd35d |
15 | bbb7384d1 |
hex | 7082e9867 |
30202042471 has 2 divisors, whose sum is σ = 30202042472. Its totient is φ = 30202042470.
The previous prime is 30202042469. The next prime is 30202042513. The reversal of 30202042471 is 17424020203.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30202042471 - 21 = 30202042469 is a prime.
It is a super-3 number, since 3×302020424713 (a number of 32 digits) contains 333 as substring.
Together with 30202042469, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30202042411) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101021235 + 15101021236.
It is an arithmetic number, because the mean of its divisors is an integer number (15101021236).
Almost surely, 230202042471 is an apocalyptic number.
30202042471 is a deficient number, since it is larger than the sum of its proper divisors (1).
30202042471 is an equidigital number, since it uses as much as digits as its factorization.
30202042471 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2688, while the sum is 25.
Adding to 30202042471 its reverse (17424020203), we get a palindrome (47626062674).
The spelling of 30202042471 in words is "thirty billion, two hundred two million, forty-two thousand, four hundred seventy-one".
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