Base | Representation |
---|---|
bin | 11100000100100111… |
… | …110111101000110101 |
3 | 2212210200010002102010 |
4 | 130010213313220311 |
5 | 443212414101240 |
6 | 21502554434433 |
7 | 2114645406222 |
oct | 340447675065 |
9 | 85720102363 |
10 | 30142331445 |
11 | 11868618826 |
12 | 5a12732a19 |
13 | 2ac4a0a6a5 |
14 | 165d2d8949 |
15 | bb6391280 |
hex | 7049f7a35 |
30142331445 has 16 divisors (see below), whose sum is σ = 48724925760. Its totient is φ = 15910178304.
The previous prime is 30142331399. The next prime is 30142331503. The reversal of 30142331445 is 54413324103.
It is not a de Polignac number, because 30142331445 - 28 = 30142331189 is a prime.
It is a congruent number.
It is an unprimeable number.
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, 10356735 + ... + 10359644.
It is an arithmetic number, because the mean of its divisors is an integer number (3045307860).
Almost surely, 230142331445 is an apocalyptic number.
It is an amenable number.
30142331445 is a deficient number, since it is larger than the sum of its proper divisors (18582594315).
30142331445 is a wasteful number, since it uses less digits than its factorization.
30142331445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20716484.
The product of its (nonzero) digits is 17280, while the sum is 30.
Adding to 30142331445 its reverse (54413324103), we get a palindrome (84555655548).
The spelling of 30142331445 in words is "thirty billion, one hundred forty-two million, three hundred thirty-one thousand, four hundred forty-five".
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