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450222231 = 31237121321
BaseRepresentation
bin11010110101011…
…101100010010111
31011101011122210110
4122311131202113
51410224102411
6112401454103
714104553154
oct3265354227
91141148713
10450222231
11211158698
12106941333
1372376bb4
1443b1922b
15297d42a6
hex1ad5d897

450222231 has 8 divisors (see below), whose sum is σ = 600786544. Its totient is φ = 299903040.

The previous prime is 450222197. The next prime is 450222257. The reversal of 450222231 is 132222054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 450222231 - 215 = 450189463 is a prime.

It is a super-2 number, since 2×4502222312 = 405400114573234722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450222198 and 450222207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450222131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56950 + ... + 64371.

It is an arithmetic number, because the mean of its divisors is an integer number (75098318).

Almost surely, 2450222231 is an apocalyptic number.

450222231 is a deficient number, since it is larger than the sum of its proper divisors (150564313).

450222231 is a wasteful number, since it uses less digits than its factorization.

450222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122561.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 450222231 is about 21218.4408239625. The cubic root of 450222231 is about 766.4355580865.

Adding to 450222231 its reverse (132222054), we get a palindrome (582444285).

The spelling of 450222231 in words is "four hundred fifty million, two hundred twenty-two thousand, two hundred thirty-one".

Divisors: 1 3 1237 3711 121321 363963 150074077 450222231