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229519220 = 22576724469
BaseRepresentation
bin11011010111000…
…10111101110100
3120222212210011212
431223202331310
5432224103340
634435220552
75454611150
oct1553427564
9528783155
10229519220
11108615207
1264a47758
13387214b8
14226a8060
151523aa65
hexdae2f74

229519220 has 48 divisors (see below), whose sum is σ = 559090560. Its totient is φ = 77514624.

The previous prime is 229519219. The next prime is 229519223. The reversal of 229519220 is 22915922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229519223) 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 15 ways as a sum of consecutive naturals, for example, 2855 + ... + 21614.

It is an arithmetic number, because the mean of its divisors is an integer number (11647720).

Almost surely, 2229519220 is an apocalyptic number.

229519220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229519220 is an abundant number, since it is smaller than the sum of its proper divisors (329571340).

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

229519220 is a wasteful number, since it uses less digits than its factorization.

229519220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24552 (or 24550 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 229519220 is about 15149.8917487882. The cubic root of 229519220 is about 612.2653561855.

The spelling of 229519220 in words is "two hundred twenty-nine million, five hundred nineteen thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 67 70 134 140 268 335 469 670 938 1340 1876 2345 4690 9380 24469 48938 97876 122345 171283 244690 342566 489380 685132 856415 1639423 1712830 3278846 3425660 6557692 8197115 11475961 16394230 22951922 32788460 45903844 57379805 114759610 229519220