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2143110140 = 225666116087
BaseRepresentation
bin111111110111101…
…0100001111111100
312112100122021102122
41333233110033330
513342114011030
6552354142112
7104052064343
oct17757241774
95470567378
102143110140
119aa803406
124b9881938
13282003212
141648acb5a
15c82308e5
hex7fbd43fc

2143110140 has 24 divisors (see below), whose sum is σ = 4501486752. Its totient is φ = 857062080.

The previous prime is 2143110103. The next prime is 2143110161. The reversal of 2143110140 is 410113412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125177 + ... + 141263.

It is an arithmetic number, because the mean of its divisors is an integer number (187561948).

Almost surely, 22143110140 is an apocalyptic number.

2143110140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143110140 is an abundant number, since it is smaller than the sum of its proper divisors (2358376612).

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

2143110140 is a wasteful number, since it uses less digits than its factorization.

2143110140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22757 (or 22755 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2143110140 is about 46293.7375894408. The cubic root of 2143110140 is about 1289.2827252608.

Adding to 2143110140 its reverse (410113412), we get a palindrome (2553223552).

The spelling of 2143110140 in words is "two billion, one hundred forty-three million, one hundred ten thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 6661 13322 16087 26644 32174 33305 64348 66610 80435 133220 160870 321740 107155507 214311014 428622028 535777535 1071555070 2143110140