Search a number
-
+
222027456 = 263731732
BaseRepresentation
bin11010011101111…
…01111011000000
3120110210011102010
431032331323000
5423314334311
634010452520
75334126240
oct1516757300
9513704363
10222027456
11104368572
1262434140
1336cca4c1
14216b7b20
151475ada6
hexd3bdec0

222027456 has 168 divisors, whose sum is σ = 702649344. Its totient is φ = 60549120.

The previous prime is 222027427. The next prime is 222027457. The reversal of 222027456 is 654720222.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222027457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3041436 + ... + 3041508.

Almost surely, 2222027456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222027456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351324672).

222027456 is an abundant number, since it is smaller than the sum of its proper divisors (480621888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222027456 is an equidigital number, since it uses as much as digits as its factorization.

222027456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 222027456 is about 14900.5857602982. The cubic root of 222027456 is about 605.5298556978.

Adding to 222027456 its reverse (654720222), we get a palindrome (876747678).

The spelling of 222027456 in words is "two hundred twenty-two million, twenty-seven thousand, four hundred fifty-six".