Search a number
-
+
2238322481 = 3172203951
BaseRepresentation
bin1000010101101010…
…0001011100110001
312202222210120012122
42011122201130301
514041002304411
61010035004025
7106316266343
oct20532413461
95688716178
102238322481
11a4952489a
12525739615
1329895b795
141733b5293
15d178b9db
hex856a1731

2238322481 has 4 divisors (see below), whose sum is σ = 2310526464. Its totient is φ = 2166118500.

The previous prime is 2238322469. The next prime is 2238322483. The reversal of 2238322481 is 1842238322.

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 2238322481 - 214 = 2238306097 is a prime.

It is a super-2 number, since 2×22383224812 = 10020175057899990722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2238322483) 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, 36101945 + ... + 36102006.

It is an arithmetic number, because the mean of its divisors is an integer number (577631616).

Almost surely, 22238322481 is an apocalyptic number.

It is an amenable number.

2238322481 is a deficient number, since it is larger than the sum of its proper divisors (72203983).

2238322481 is an equidigital number, since it uses as much as digits as its factorization.

2238322481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72203982.

The product of its digits is 36864, while the sum is 35.

The square root of 2238322481 is about 47310.9129165777. The cubic root of 2238322481 is about 1308.0998189416.

The spelling of 2238322481 in words is "two billion, two hundred thirty-eight million, three hundred twenty-two thousand, four hundred eighty-one".

Divisors: 1 31 72203951 2238322481