Base | Representation |
---|---|
bin | 1011000100010010100… |
… | …0100000100110011101 |
3 | 200011202111012022101012 |
4 | 2301010220200212131 |
5 | 11103341241443010 |
6 | 223202230225005 |
7 | 16510412412125 |
oct | 2610450404635 |
9 | 604674168335 |
10 | 190130031005 |
11 | 736a749a432 |
12 | 30a221b5165 |
13 | 14c1055b635 |
14 | 92b9329c85 |
15 | 4e2bbee005 |
hex | 2c44a2099d |
190130031005 has 4 divisors (see below), whose sum is σ = 228156037212. Its totient is φ = 152104024800.
The previous prime is 190130030977. The next prime is 190130031011. The reversal of 190130031005 is 500130031091.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 145034535556 + 45095495449 = 380834^2 + 212357^2 .
It is not a de Polignac number, because 190130031005 - 216 = 190129965469 is a prime.
It is a super-2 number, since 2×1901300310052 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19013003096 + ... + 19013003105.
It is an arithmetic number, because the mean of its divisors is an integer number (57039009303).
Almost surely, 2190130031005 is an apocalyptic number.
It is an amenable number.
190130031005 is a deficient number, since it is larger than the sum of its proper divisors (38026006207).
190130031005 is an equidigital number, since it uses as much as digits as its factorization.
190130031005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38026006206.
The product of its (nonzero) digits is 405, while the sum is 23.
Adding to 190130031005 its reverse (500130031091), we get a palindrome (690260062096).
The spelling of 190130031005 in words is "one hundred ninety billion, one hundred thirty million, thirty-one thousand, five".
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