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220199144 = 23112502263
BaseRepresentation
bin11010001111111…
…11100011101000
3120100100021102212
431013333203220
5422332333034
633503344252
75312443004
oct1507774350
9510307385
10220199144
11103329970
12618b2088
133680a269
142135d704
15144e92ce
hexd1ff8e8

220199144 has 16 divisors (see below), whose sum is σ = 450407520. Its totient is φ = 100090480.

The previous prime is 220199143. The next prime is 220199159. The reversal of 220199144 is 441991022.

It is a self number, because there is not a number n which added to its sum of digits gives 220199144.

It is not an unprimeable number, because it can be changed into a prime (220199143) 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 3 ways as a sum of consecutive naturals, for example, 1251044 + ... + 1251219.

It is an arithmetic number, because the mean of its divisors is an integer number (28150470).

Almost surely, 2220199144 is an apocalyptic number.

It is an amenable number.

220199144 is an abundant number, since it is smaller than the sum of its proper divisors (230208376).

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

220199144 is a wasteful number, since it uses less digits than its factorization.

220199144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502280 (or 2502276 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 220199144 is about 14839.1085985648. The cubic root of 220199144 is about 603.8631694491.

The spelling of 220199144 in words is "two hundred twenty million, one hundred ninety-nine thousand, one hundred forty-four".

Divisors: 1 2 4 8 11 22 44 88 2502263 5004526 10009052 20018104 27524893 55049786 110099572 220199144