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2143223143 = 5035238147
BaseRepresentation
bin111111110111110…
…1111110101100111
312112100212000102221
41333233233311213
513342131120033
6552400413211
7104053044655
oct17757576547
95470760387
102143223143
119aa8802a6
124b9917207
13282042799
141648dbdd5
15c825412d
hex7fbefd67

2143223143 has 8 divisors (see below), whose sum is σ = 2151854208. Its totient is φ = 2134610424.

The previous prime is 2143223107. The next prime is 2143223177. The reversal of 2143223143 is 3413223412.

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 2143223143 - 217 = 2143092071 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 (2143223443) 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, 258996 + ... + 267142.

It is an arithmetic number, because the mean of its divisors is an integer number (268981776).

Almost surely, 22143223143 is an apocalyptic number.

2143223143 is a deficient number, since it is larger than the sum of its proper divisors (8631065).

2143223143 is an equidigital number, since it uses as much as digits as its factorization.

2143223143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9173.

The product of its digits is 3456, while the sum is 25.

The square root of 2143223143 is about 46294.9580732071. The cubic root of 2143223143 is about 1289.3053855140.

Adding to 2143223143 its reverse (3413223412), we get a palindrome (5556446555).

The spelling of 2143223143 in words is "two billion, one hundred forty-three million, two hundred twenty-three thousand, one hundred forty-three".

Divisors: 1 503 523 8147 263069 4097941 4260881 2143223143