Base | Representation |
---|---|
bin | 11100000100111001… |
… | …011010101101010101 |
3 | 2212210222202210120001 |
4 | 130010321122231111 |
5 | 443220103302131 |
6 | 21503241211301 |
7 | 2115032455456 |
oct | 340471325525 |
9 | 85728683501 |
10 | 30146931541 |
11 | 1187017a961 |
12 | 5a14190b31 |
13 | 2ac595b43c |
14 | 165db7512d |
15 | bb699e261 |
hex | 704e5ab55 |
30146931541 has 2 divisors, whose sum is σ = 30146931542. Its totient is φ = 30146931540.
The previous prime is 30146931539. The next prime is 30146931599. The reversal of 30146931541 is 14513964103.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 16050356100 + 14096575441 = 126690^2 + 118729^2 .
It is an emirp because it is prime and its reverse (14513964103) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30146931541 - 21 = 30146931539 is a prime.
Together with 30146931539, it forms a pair of twin primes.
It is a self number, because there is not a number n which added to its sum of digits gives 30146931541.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30176931541) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15073465770 + 15073465771.
It is an arithmetic number, because the mean of its divisors is an integer number (15073465771).
Almost surely, 230146931541 is an apocalyptic number.
It is an amenable number.
30146931541 is a deficient number, since it is larger than the sum of its proper divisors (1).
30146931541 is an equidigital number, since it uses as much as digits as its factorization.
30146931541 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 38880, while the sum is 37.
The spelling of 30146931541 in words is "thirty billion, one hundred forty-six million, nine hundred thirty-one thousand, five hundred forty-one".
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