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20002213230 = 2352692478589
BaseRepresentation
bin10010101000001110…
…011000110101101110
31220121222200201020020
4102220032120311232
5311431031310410
613104444503010
71305450002316
oct225016306556
956558621206
1020002213230
11853480093a
123a6284aa66
131b69ca113c
14d7a700446
157c1056a70
hex4a8398d6e

20002213230 has 32 divisors (see below), whose sum is σ = 48183789600. Its totient is φ = 5314092672.

The previous prime is 20002213229. The next prime is 20002213237. The reversal of 20002213230 is 3231220002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002213237) 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, 1231225 + ... + 1247364.

It is an arithmetic number, because the mean of its divisors is an integer number (1505743425).

Almost surely, 220002213230 is an apocalyptic number.

20002213230 is an abundant number, since it is smaller than the sum of its proper divisors (28181576370).

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

20002213230 is a wasteful number, since it uses less digits than its factorization.

20002213230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478868.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20002213230 its reverse (3231220002), we get a palindrome (23233433232).

The spelling of 20002213230 in words is "twenty billion, two million, two hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 269 538 807 1345 1614 2690 4035 8070 2478589 4957178 7435767 12392945 14871534 24785890 37178835 74357670 666740441 1333480882 2000221323 3333702205 4000442646 6667404410 10001106615 20002213230