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2142322230 = 235553112911
BaseRepresentation
bin111111110110001…
…0011111000110110
312112022011020121210
41333230103320312
513341413302410
6552325222250
7104042303256
oct17754237066
95468136553
102142322230
119aa315444
124b9561986
13281ab86b9
14164745966
15c8127220
hex7fb13e36

2142322230 has 32 divisors (see below), whose sum is σ = 5142901248. Its totient is φ = 571138400.

The previous prime is 2142322183. The next prime is 2142322243. The reversal of 2142322230 is 322232412.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2142322197 and 2142322206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159475 + ... + 172385.

It is an arithmetic number, because the mean of its divisors is an integer number (160715664).

Almost surely, 22142322230 is an apocalyptic number.

2142322230 is an abundant number, since it is smaller than the sum of its proper divisors (3000579018).

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

2142322230 is a wasteful number, since it uses less digits than its factorization.

2142322230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18452.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2142322230 is about 46285.2269088097. The cubic root of 2142322230 is about 1289.1247051870.

Adding to 2142322230 its reverse (322232412), we get a palindrome (2464554642).

The spelling of 2142322230 in words is "two billion, one hundred forty-two million, three hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 5531 11062 12911 16593 25822 27655 33186 38733 55310 64555 77466 82965 129110 165930 193665 387330 71410741 142821482 214232223 357053705 428464446 714107410 1071161115 2142322230