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213143001143 = 257829350199
BaseRepresentation
bin1100011010000001010…
…0000001100000110111
3202101011022011022122112
43012200110001200313
511443004102014033
6241525550121235
721253611421412
oct3064024014067
9671138138575
10213143001143
1182436738516
12353851b021b
131713a20c227
14a45d832b79
155827221c48
hex31a0501837

213143001143 has 4 divisors (see below), whose sum is σ = 213972351600. Its totient is φ = 212313650688.

The previous prime is 213143001121. The next prime is 213143001163. The reversal of 213143001143 is 341100341312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213143001143 - 214 = 213142984759 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 (213143001163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414674843 + ... + 414675356.

It is an arithmetic number, because the mean of its divisors is an integer number (53493087900).

Almost surely, 2213143001143 is an apocalyptic number.

213143001143 is a deficient number, since it is larger than the sum of its proper divisors (829350457).

213143001143 is an equidigital number, since it uses as much as digits as its factorization.

213143001143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829350456.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 213143001143 its reverse (341100341312), we get a palindrome (554243342455).

The spelling of 213143001143 in words is "two hundred thirteen billion, one hundred forty-three million, one thousand, one hundred forty-three".

Divisors: 1 257 829350199 213143001143