Base | Representation |
---|---|
bin | 11100010101001010… |
… | …001001011110010001 |
3 | 2220112000010120000221 |
4 | 130111022021132101 |
5 | 444244424042344 |
6 | 21550304513041 |
7 | 2124554430043 |
oct | 342512113621 |
9 | 86460116027 |
10 | 30419752849 |
11 | 119a0180612 |
12 | 5a8b61b781 |
13 | 2b3a331475 |
14 | 16880b1a93 |
15 | bd08e0184 |
hex | 715289791 |
30419752849 has 2 divisors, whose sum is σ = 30419752850. Its totient is φ = 30419752848.
The previous prime is 30419752843. The next prime is 30419752861. The reversal of 30419752849 is 94825791403.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 29848781824 + 570971025 = 172768^2 + 23895^2 .
It is a cyclic number.
It is not a de Polignac number, because 30419752849 - 23 = 30419752841 is a prime.
It is a super-2 number, since 2×304197528492 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30419752796 and 30419752805.
It is not a weakly prime, because it can be changed into another prime (30419752841) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15209876424 + 15209876425.
It is an arithmetic number, because the mean of its divisors is an integer number (15209876425).
Almost surely, 230419752849 is an apocalyptic number.
It is an amenable number.
30419752849 is a deficient number, since it is larger than the sum of its proper divisors (1).
30419752849 is an equidigital number, since it uses as much as digits as its factorization.
30419752849 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2177280, while the sum is 52.
The spelling of 30419752849 in words is "thirty billion, four hundred nineteen million, seven hundred fifty-two thousand, eight hundred forty-nine".
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