Base | Representation |
---|---|
bin | 11100011010100011… |
… | …111100011110010001 |
3 | 2220202022200222111121 |
4 | 130122203330132101 |
5 | 444441130321200 |
6 | 22003303442241 |
7 | 2130035063440 |
oct | 343243743621 |
9 | 86668628447 |
10 | 30510401425 |
11 | 11a37365199 |
12 | 5ab5a56381 |
13 | 2b5304c68a |
14 | 169614ad57 |
15 | bd8848e1a |
hex | 71a8fc791 |
30510401425 has 12 divisors (see below), whose sum is σ = 43237597696. Its totient is φ = 20921418000.
The previous prime is 30510401423. The next prime is 30510401443. The reversal of 30510401425 is 52410401503.
It is a happy number.
It is not a de Polignac number, because 30510401425 - 21 = 30510401423 is a prime.
It is a super-2 number, since 2×305104014252 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30510401425.
It is not an unprimeable number, because it can be changed into a prime (30510401423) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87172401 + ... + 87172750.
Almost surely, 230510401425 is an apocalyptic number.
30510401425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30510401425 is a deficient number, since it is larger than the sum of its proper divisors (12727196271).
30510401425 is a wasteful number, since it uses less digits than its factorization.
30510401425 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 174345168 (or 174345163 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 25.
Adding to 30510401425 its reverse (52410401503), we get a palindrome (82920802928).
The spelling of 30510401425 in words is "thirty billion, five hundred ten million, four hundred one thousand, four hundred twenty-five".
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