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229528454 = 22321612309
BaseRepresentation
bin11011010111001…
…01001110000110
3120222220020211212
431223211032012
5432224402304
634435331422
75454650111
oct1553451606
9528806755
10229528454
11108621141
1264a50b72
133872576c
14226ab578
151523d66e
hexdae5386

229528454 has 16 divisors (see below), whose sum is σ = 359583840. Its totient is φ = 109676160.

The previous prime is 229528451. The next prime is 229528463. The reversal of 229528454 is 454825922.

It is a happy number.

It is a super-2 number, since 2×2295284542 = 105366622391260232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229528451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98252 + ... + 100560.

It is an arithmetic number, because the mean of its divisors is an integer number (22473990).

Almost surely, 2229528454 is an apocalyptic number.

229528454 is a deficient number, since it is larger than the sum of its proper divisors (130055386).

229528454 is a wasteful number, since it uses less digits than its factorization.

229528454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4495.

The product of its digits is 230400, while the sum is 41.

The square root of 229528454 is about 15150.1965003758. The cubic root of 229528454 is about 612.2735669466.

The spelling of 229528454 in words is "two hundred twenty-nine million, five hundred twenty-eight thousand, four hundred fifty-four".

Divisors: 1 2 23 46 2161 2309 4322 4618 49703 53107 99406 106214 4989749 9979498 114764227 229528454