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34213143 = 3531072011
BaseRepresentation
bin1000001010000…
…0110100010111
32101101012121110
42002200310113
532224310033
63221150103
7563543526
oct202406427
971335543
1034213143
1118348928
12b55b333
13711b883
1447884bd
15300c363
hex20a0d17

34213143 has 16 divisors (see below), whose sum is σ = 46935936. Its totient is φ = 22158240.

The previous prime is 34213141. The next prime is 34213169. The reversal of 34213143 is 34131243.

It is not a de Polignac number, because 34213143 - 21 = 34213141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34213141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16008 + ... + 18018.

It is an arithmetic number, because the mean of its divisors is an integer number (2933496).

Almost surely, 234213143 is an apocalyptic number.

34213143 is a deficient number, since it is larger than the sum of its proper divisors (12722793).

34213143 is a wasteful number, since it uses less digits than its factorization.

34213143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174.

The product of its digits is 864, while the sum is 21.

The square root of 34213143 is about 5849.2002017370. The cubic root of 34213143 is about 324.6367317814.

Adding to 34213143 its reverse (34131243), we get a palindrome (68344386).

The spelling of 34213143 in words is "thirty-four million, two hundred thirteen thousand, one hundred forty-three".

Divisors: 1 3 53 107 159 321 2011 5671 6033 17013 106583 215177 319749 645531 11404381 34213143