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34143143 = 60756249
BaseRepresentation
bin1000001000111…
…1101110100111
32101020122120212
42002033232213
532220040033
63215450035
7563132456
oct202175647
971218525
1034143143
1118300281
12b52691b
1370c5a58
14476ab9d
152ee6748
hex208fba7

34143143 has 4 divisors (see below), whose sum is σ = 34200000. Its totient is φ = 34086288.

The previous prime is 34143139. The next prime is 34143163. The reversal of 34143143 is 34134143.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34134143 = 73467591.

It is a cyclic number.

It is not a de Polignac number, because 34143143 - 22 = 34143139 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 (34143113) 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, 27518 + ... + 28731.

It is an arithmetic number, because the mean of its divisors is an integer number (8550000).

Almost surely, 234143143 is an apocalyptic number.

34143143 is a deficient number, since it is larger than the sum of its proper divisors (56857).

34143143 is an equidigital number, since it uses as much as digits as its factorization.

34143143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56856.

The product of its digits is 1728, while the sum is 23.

The square root of 34143143 is about 5843.2134138674. The cubic root of 34143143 is about 324.4151786490.

Adding to 34143143 its reverse (34134143), we get a palindrome (68277286).

The spelling of 34143143 in words is "thirty-four million, one hundred forty-three thousand, one hundred forty-three".

Divisors: 1 607 56249 34143143