Base | Representation |
---|---|
bin | 111100100010101… |
… | …0000101000110101 |
3 | 12020120110221010001 |
4 | 1321011100220311 |
5 | 13130021001010 |
6 | 533324231301 |
7 | 101224542064 |
oct | 17105205065 |
9 | 5216427101 |
10 | 2031422005 |
11 | 952759468 |
12 | 48839b531 |
13 | 264b29672 |
14 | 153b181db |
15 | bd51cc3a |
hex | 79150a35 |
2031422005 has 8 divisors (see below), whose sum is σ = 2438417592. Its totient is φ = 1624663488.
The previous prime is 2031421969. The next prime is 2031422009. The reversal of 2031422005 is 5002241302.
It can be written as a sum of positive squares in 4 ways, for example, as 258759396 + 1772662609 = 16086^2 + 42103^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2031422005 - 27 = 2031421877 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2031422009) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39834 + ... + 75163.
It is an arithmetic number, because the mean of its divisors is an integer number (304802199).
Almost surely, 22031422005 is an apocalyptic number.
It is an amenable number.
2031422005 is a deficient number, since it is larger than the sum of its proper divisors (406995587).
2031422005 is a wasteful number, since it uses less digits than its factorization.
2031422005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 118535.
The product of its (nonzero) digits is 480, while the sum is 19.
The square root of 2031422005 is about 45071.2991270498. The cubic root of 2031422005 is about 1266.4850011474.
Adding to 2031422005 its reverse (5002241302), we get a palindrome (7033663307).
The spelling of 2031422005 in words is "two billion, thirty-one million, four hundred twenty-two thousand, five".
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