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420320230 = 251112373089
BaseRepresentation
bin11001000011011…
…001001111100110
31002021220110221221
4121003121033212
51330100221410
6105412530554
713262443261
oct3103311746
91067813857
10420320230
111a62948a0
12b8920a5a
13691076c5
143db73cd8
1526d794da
hex190d93e6

420320230 has 32 divisors (see below), whose sum is σ = 826290720. Its totient is φ = 152670720.

The previous prime is 420320221. The next prime is 420320231. The reversal of 420320230 is 32023024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420320231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134526 + ... + 137614.

It is an arithmetic number, because the mean of its divisors is an integer number (25821585).

Almost surely, 2420320230 is an apocalyptic number.

420320230 is a deficient number, since it is larger than the sum of its proper divisors (405970490).

420320230 is a wasteful number, since it uses less digits than its factorization.

420320230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 420320230 is about 20501.7128552714. The cubic root of 420320230 is about 749.0775206558.

Adding to 420320230 its reverse (32023024), we get a palindrome (452343254).

The spelling of 420320230 in words is "four hundred twenty million, three hundred twenty thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 1237 2474 3089 6178 6185 12370 13607 15445 27214 30890 33979 67958 68035 136070 169895 339790 3821093 7642186 19105465 38210930 42032023 84064046 210160115 420320230