Search a number
-
+
4228550281 = 23917692679
BaseRepresentation
bin1111110000001010…
…1000111010001001
3101220200202121111101
43330002220322021
532130002102111
61535332301401
7206534040634
oct37402507211
911820677441
104228550281
11187a9a745a
129a0171861
13525093b77
142c1848c1b
1519b36dbc1
hexfc0a8e89

4228550281 has 4 divisors (see below), whose sum is σ = 4246243200. Its totient is φ = 4210857364.

The previous prime is 4228550279. The next prime is 4228550311. The reversal of 4228550281 is 1820558224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4228550281 - 21 = 4228550279 is a prime.

It is a super-2 number, since 2×42285502812 = 35761274957890357922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4228550281.

It is not an unprimeable number, because it can be changed into a prime (4228550881) 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, 8846101 + ... + 8846578.

It is an arithmetic number, because the mean of its divisors is an integer number (1061560800).

Almost surely, 24228550281 is an apocalyptic number.

It is an amenable number.

4228550281 is a deficient number, since it is larger than the sum of its proper divisors (17692919).

4228550281 is a wasteful number, since it uses less digits than its factorization.

4228550281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17692918.

The product of its (nonzero) digits is 51200, while the sum is 37.

The square root of 4228550281 is about 65027.3041191160. The cubic root of 4228550281 is about 1617.0762537843.

The spelling of 4228550281 in words is "four billion, two hundred twenty-eight million, five hundred fifty thousand, two hundred eighty-one".

Divisors: 1 239 17692679 4228550281