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34068281 = 132620637
BaseRepresentation
bin1000000111110…
…1011100111001
32101002211220012
42001331130321
532210141111
63214111305
7562401302
oct201753471
971084805
1034068281
111825a005
12b4ab535
13709a960
14474b7a9
152ece48b
hex207d739

34068281 has 4 divisors (see below), whose sum is σ = 36688932. Its totient is φ = 31447632.

The previous prime is 34068269. The next prime is 34068283. The reversal of 34068281 is 18286043.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12538681 + 21529600 = 3541^2 + 4640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34068281 is a prime.

It is a super-2 number, since 2×340682812 = 2321295540589922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34068283) 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, 1310306 + ... + 1310331.

It is an arithmetic number, because the mean of its divisors is an integer number (9172233).

Almost surely, 234068281 is an apocalyptic number.

It is an amenable number.

34068281 is a deficient number, since it is larger than the sum of its proper divisors (2620651).

34068281 is a wasteful number, since it uses less digits than its factorization.

34068281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620650.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 34068281 is about 5836.8040056181. The cubic root of 34068281 is about 324.1779017157.

The spelling of 34068281 in words is "thirty-four million, sixty-eight thousand, two hundred eighty-one".

Divisors: 1 13 2620637 34068281