Search a number
-
+
222741457 = 538947221
BaseRepresentation
bin11010100011011…
…00001111010001
3120112010102211121
431101230033101
5424010211312
634034042241
75343162001
oct1521541721
9515112747
10222741457
11104805a54
1262719381
13371ba4a3
1421822001
151484c707
hexd46c3d1

222741457 has 8 divisors (see below), whose sum is σ = 229498920. Its totient is φ = 216078720.

The previous prime is 222741437. The next prime is 222741473. The reversal of 222741457 is 754147222.

222741457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7268416 + 215473041 = 2696^2 + 14679^2 .

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 222741457 - 27 = 222741329 is a prime.

It is a super-2 number, since 2×2227414572 = 99227513332965698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222741437) 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, 18894 + ... + 28327.

It is an arithmetic number, because the mean of its divisors is an integer number (28687365).

Almost surely, 2222741457 is an apocalyptic number.

It is an amenable number.

222741457 is a deficient number, since it is larger than the sum of its proper divisors (6757463).

222741457 is an equidigital number, since it uses as much as digits as its factorization.

222741457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47363.

The product of its digits is 31360, while the sum is 34.

The square root of 222741457 is about 14924.5253525866. The cubic root of 222741457 is about 606.1782534289.

Adding to 222741457 its reverse (754147222), we get a palindrome (976888679).

The spelling of 222741457 in words is "two hundred twenty-two million, seven hundred forty-one thousand, four hundred fifty-seven".

Divisors: 1 53 89 4717 47221 2502713 4202669 222741457