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229148490 = 2357638283
BaseRepresentation
bin11011010100010…
…00011101001010
3120222011221122010
431222020131022
5432130222430
634423240350
75451505254
oct1552103512
9528157563
10229148490
1110839171a
12648a90b6
133862182c
142260ccd4
15151b5cb0
hexda8874a

229148490 has 16 divisors (see below), whose sum is σ = 549956448. Its totient is φ = 61106256.

The previous prime is 229148449. The next prime is 229148503. The reversal of 229148490 is 94841922.

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, 3819112 + ... + 3819171.

It is an arithmetic number, because the mean of its divisors is an integer number (34372278).

Almost surely, 2229148490 is an apocalyptic number.

229148490 is an abundant number, since it is smaller than the sum of its proper divisors (320807958).

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

229148490 is a wasteful number, since it uses less digits than its factorization.

229148490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638293.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 229148490 is about 15137.6514030414. The cubic root of 229148490 is about 611.9355254817.

The spelling of 229148490 in words is "two hundred twenty-nine million, one hundred forty-eight thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 7638283 15276566 22914849 38191415 45829698 76382830 114574245 229148490