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34211143 = 231487441
BaseRepresentation
bin1000001010000…
…0010101000111
32101101002212101
42002200111013
532224224033
63221132531
7563534641
oct202402507
971332771
1034211143
111834737a
12b55a147
13711a9a5
144787891
15300b97d
hex20a0547

34211143 has 4 divisors (see below), whose sum is σ = 35698608. Its totient is φ = 32723680.

The previous prime is 34211131. The next prime is 34211147. The reversal of 34211143 is 34111243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34111243 = 49169473.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34211143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34211143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34211147) 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, 743698 + ... + 743743.

It is an arithmetic number, because the mean of its divisors is an integer number (8924652).

Almost surely, 234211143 is an apocalyptic number.

34211143 is a deficient number, since it is larger than the sum of its proper divisors (1487465).

34211143 is a wasteful number, since it uses less digits than its factorization.

34211143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487464.

The product of its digits is 288, while the sum is 19.

The square root of 34211143 is about 5849.0292356937. The cubic root of 34211143 is about 324.6304058877.

Adding to 34211143 its reverse (34111243), we get a palindrome (68322386).

The spelling of 34211143 in words is "thirty-four million, two hundred eleven thousand, one hundred forty-three".

Divisors: 1 23 1487441 34211143