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2142443030 = 257138112903
BaseRepresentation
bin111111110110011…
…0001011000010110
312112022101101022212
41333230301120112
513341431134110
6552331553422
7104043315410
oct17754613026
95468341285
102142443030
119aa398182
124b95bb872
13281b2b690
141647779b0
15c814ce05
hex7fb31616

2142443030 has 64 divisors (see below), whose sum is σ = 4753824768. Its totient is φ = 676978560.

The previous prime is 2142443011. The next prime is 2142443041. The reversal of 2142443030 is 303442412.

It is a junction number, because it is equal to n+sod(n) for n = 2142442987 and 2142443005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 736559 + ... + 739461.

It is an arithmetic number, because the mean of its divisors is an integer number (74278512).

Almost surely, 22142443030 is an apocalyptic number.

2142443030 is an abundant number, since it is smaller than the sum of its proper divisors (2611381738).

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

2142443030 is a wasteful number, since it uses less digits than its factorization.

2142443030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2142443030 is about 46286.5318424269. The cubic root of 2142443030 is about 1289.1489348656.

Adding to 2142443030 its reverse (303442412), we get a palindrome (2445885442).

The spelling of 2142443030 in words is "two billion, one hundred forty-two million, four hundred forty-three thousand, thirty".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 811 910 1622 2903 4055 5677 5806 8110 10543 11354 14515 20321 21086 28385 29030 37739 40642 52715 56770 73801 75478 101605 105430 147602 188695 203210 264173 369005 377390 528346 738010 1320865 2354333 2641730 4708666 11771665 16480331 23543330 30606329 32960662 61212658 82401655 153031645 164803310 214244303 306063290 428488606 1071221515 2142443030