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219322068 = 22372610977
BaseRepresentation
bin11010001001010…
…01011011010100
3120021200201022120
431010221123110
5422121301233
633432455540
75302130640
oct1504513324
9507621276
10219322068
1110288aa09
126154a5b0
1336590c94
14211b1c20
15143c44b3
hexd1296d4

219322068 has 24 divisors (see below), whose sum is σ = 584859072. Its totient is φ = 62663424.

The previous prime is 219322063. The next prime is 219322121. The reversal of 219322068 is 860223912.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219322063) 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, 1305405 + ... + 1305572.

It is an arithmetic number, because the mean of its divisors is an integer number (24369128).

Almost surely, 2219322068 is an apocalyptic number.

219322068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

219322068 is an abundant number, since it is smaller than the sum of its proper divisors (365537004).

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

219322068 is a wasteful number, since it uses less digits than its factorization.

219322068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610991 (or 2610989 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 219322068 is about 14809.5262584595. The cubic root of 219322068 is about 603.0603527512.

The spelling of 219322068 in words is "two hundred nineteen million, three hundred twenty-two thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 2610977 5221954 7832931 10443908 15665862 18276839 31331724 36553678 54830517 73107356 109661034 219322068