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220228963 = 832719791
BaseRepresentation
bin11010010000001…
…10110101100011
3120100101210100021
431020012311203
5422334311323
633504134311
75312625643
oct1510066543
9510353307
10220228963
1110334a309
1261907397
133681a9c6
142136a523
151450305d
hexd206d63

220228963 has 8 divisors (see below), whose sum is σ = 223727616. Its totient is φ = 216750600.

The previous prime is 220228961. The next prime is 220228969. The reversal of 220228963 is 369822022.

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 220228963 - 21 = 220228961 is a prime.

It is a super-2 number, since 2×2202289632 = 97001592288110738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220228961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17598 + ... + 27388.

It is an arithmetic number, because the mean of its divisors is an integer number (27965952).

Almost surely, 2220228963 is an apocalyptic number.

220228963 is a deficient number, since it is larger than the sum of its proper divisors (3498653).

220228963 is an equidigital number, since it uses as much as digits as its factorization.

220228963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10145.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 220228963 is about 14840.1133081928. The cubic root of 220228963 is about 603.8904262658.

The spelling of 220228963 in words is "two hundred twenty million, two hundred twenty-eight thousand, nine hundred sixty-three".

Divisors: 1 83 271 9791 22493 812653 2653361 220228963