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2143041311 = 22917895231
BaseRepresentation
bin111111110111100…
…0011011100011111
312112100111210000102
41333233003130133
513342104310221
6552352451315
7104051356565
oct17757033437
95470453012
102143041311
119aa766724
124b9849b3b
13281caaaa8
14164891a35
15c821a30b
hex7fbc371f

2143041311 has 8 divisors (see below), whose sum is σ = 2154014400. Its totient is φ = 2132082720.

The previous prime is 2143041239. The next prime is 2143041317. The reversal of 2143041311 is 1131403412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2143041311 - 210 = 2143040287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143041317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407066 + ... + 412296.

It is an arithmetic number, because the mean of its divisors is an integer number (269251800).

Almost surely, 22143041311 is an apocalyptic number.

2143041311 is a deficient number, since it is larger than the sum of its proper divisors (10973089).

2143041311 is a wasteful number, since it uses less digits than its factorization.

2143041311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7249.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2143041311 is about 46292.9941891859. The cubic root of 2143041311 is about 1289.2689227363.

Adding to 2143041311 its reverse (1131403412), we get a palindrome (3274444723).

The spelling of 2143041311 in words is "two billion, one hundred forty-three million, forty-one thousand, three hundred eleven".

Divisors: 1 229 1789 5231 409681 1197899 9358259 2143041311