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2142124230 = 23571404141
BaseRepresentation
bin111111110101110…
…0011100011000110
312112021210012000110
41333223203203012
513341340433410
6552321053450
7104040520101
oct17753434306
95467705013
102142124230
119aa19a704
124b9487286
13281a4953c
141646d3738
15c80d8720
hex7fae38c6

2142124230 has 16 divisors (see below), whose sum is σ = 5141098224. Its totient is φ = 571233120.

The previous prime is 2142124207. The next prime is 2142124241. The reversal of 2142124230 is 324212412.

It is a junction number, because it is equal to n+sod(n) for n = 2142124197 and 2142124206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35702041 + ... + 35702100.

It is an arithmetic number, because the mean of its divisors is an integer number (321318639).

Almost surely, 22142124230 is an apocalyptic number.

2142124230 is an abundant number, since it is smaller than the sum of its proper divisors (2998973994).

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

2142124230 is a wasteful number, since it uses less digits than its factorization.

2142124230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71404151.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2142124230 is about 46283.0879479751. The cubic root of 2142124230 is about 1289.0849890086.

Adding to 2142124230 its reverse (324212412), we get a palindrome (2466336642).

The spelling of 2142124230 in words is "two billion, one hundred forty-two million, one hundred twenty-four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 71404141 142808282 214212423 357020705 428424846 714041410 1071062115 2142124230