Base | Representation |
---|---|
bin | 11100001001011111… |
… | …101101011000110011 |
3 | 2220000100221021010122 |
4 | 130021133231120303 |
5 | 443344331002022 |
6 | 21515034520455 |
7 | 2116660266416 |
oct | 341137553063 |
9 | 86010837118 |
10 | 30224078387 |
11 | 118aa782488 |
12 | 5a35b9612b |
13 | 2b0892cc69 |
14 | 166a0d7b7d |
15 | bbd63c742 |
hex | 7097ed633 |
30224078387 has 4 divisors (see below), whose sum is σ = 30224777856. Its totient is φ = 30223378920.
The previous prime is 30224078377. The next prime is 30224078399. The reversal of 30224078387 is 78387042203.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78387042203 = 4447 ⋅17626949.
It is a cyclic number.
It is not a de Polignac number, because 30224078387 - 26 = 30224078323 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30224078377) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280328 + ... + 372869.
It is an arithmetic number, because the mean of its divisors is an integer number (7556194464).
Almost surely, 230224078387 is an apocalyptic number.
30224078387 is a deficient number, since it is larger than the sum of its proper divisors (699469).
30224078387 is an equidigital number, since it uses as much as digits as its factorization.
30224078387 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 699468.
The product of its (nonzero) digits is 451584, while the sum is 44.
The spelling of 30224078387 in words is "thirty billion, two hundred twenty-four million, seventy-eight thousand, three hundred eighty-seven".
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