Base | Representation |
---|---|
bin | 11100010101110101… |
… | …101001010011010101 |
3 | 2220112210120212102010 |
4 | 130111311221103111 |
5 | 444310333433123 |
6 | 21551353134433 |
7 | 2125053360501 |
oct | 342565512325 |
9 | 86483525363 |
10 | 30431155413 |
11 | 119a665951a |
12 | 5a933ba419 |
13 | 2b3c7c4549 |
14 | 16897dd301 |
15 | bd18e3993 |
hex | 715d694d5 |
30431155413 has 16 divisors (see below), whose sum is σ = 40749500736. Its totient is φ = 20200176000.
The previous prime is 30431155397. The next prime is 30431155429. The reversal of 30431155413 is 31455113403.
It is an interprime number because it is at equal distance from previous prime (30431155397) and next prime (30431155429).
It is not a de Polignac number, because 30431155413 - 24 = 30431155397 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30431155463) 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 15 ways as a sum of consecutive naturals, for example, 4090345 + ... + 4097777.
It is an arithmetic number, because the mean of its divisors is an integer number (2546843796).
Almost surely, 230431155413 is an apocalyptic number.
It is an amenable number.
30431155413 is a deficient number, since it is larger than the sum of its proper divisors (10318345323).
30431155413 is a wasteful number, since it uses less digits than its factorization.
30431155413 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13124.
The product of its (nonzero) digits is 10800, while the sum is 30.
Adding to 30431155413 its reverse (31455113403), we get a palindrome (61886268816).
The spelling of 30431155413 in words is "thirty billion, four hundred thirty-one million, one hundred fifty-five thousand, four hundred thirteen".
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