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219289052 = 221731310303
BaseRepresentation
bin11010001001000…
…01010111011100
3120021122001000202
431010201113130
5422114222202
633432043032
75301632453
oct1504412734
9507561022
10219289052
11102868124
1261533478
133657bc48
14211a3b9a
15143b9802
hexd1215dc

219289052 has 24 divisors (see below), whose sum is σ = 407667456. Its totient is φ = 102855168.

The previous prime is 219289019. The next prime is 219289067. The reversal of 219289052 is 250982912.

It is a junction number, because it is equal to n+sod(n) for n = 219288997 and 219289015.

It is a congruent number.

It is an unprimeable number.

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, 16133 + ... + 26435.

It is an arithmetic number, because the mean of its divisors is an integer number (16986144).

Almost surely, 2219289052 is an apocalyptic number.

It is an amenable number.

219289052 is a deficient number, since it is larger than the sum of its proper divisors (188378404).

219289052 is a wasteful number, since it uses less digits than its factorization.

219289052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10637 (or 10635 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 219289052 is about 14808.4115285874. The cubic root of 219289052 is about 603.0300903462.

The spelling of 219289052 in words is "two hundred nineteen million, two hundred eighty-nine thousand, fifty-two".

Divisors: 1 2 4 17 34 68 313 626 1252 5321 10303 10642 20606 21284 41212 175151 350302 700604 3224839 6449678 12899356 54822263 109644526 219289052