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34142843 = 722721487
BaseRepresentation
bin1000001000111…
…1101001111011
32101020122011202
42002033221323
532220032333
63215444415
7563131550
oct202175173
971218152
1034142843
1118300029
12b52670b
1370c5887
14476aa27
152ee65e8
hex208fa7b

34142843 has 8 divisors (see below), whose sum is σ = 39194112. Its totient is φ = 29135016.

The previous prime is 34142839. The next prime is 34142881. The reversal of 34142843 is 34824143.

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 34142843 - 22 = 34142839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34142813) 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, 9155 + ... + 12332.

It is an arithmetic number, because the mean of its divisors is an integer number (4899264).

Almost surely, 234142843 is an apocalyptic number.

34142843 is a deficient number, since it is larger than the sum of its proper divisors (5051269).

34142843 is a wasteful number, since it uses less digits than its factorization.

34142843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21721.

The product of its digits is 9216, while the sum is 29.

The square root of 34142843 is about 5843.1877430047. The cubic root of 34142843 is about 324.4142284842.

Adding to 34142843 its reverse (34824143), we get a palindrome (68966986).

The spelling of 34142843 in words is "thirty-four million, one hundred forty-two thousand, eight hundred forty-three".

Divisors: 1 7 227 1589 21487 150409 4877549 34142843