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34285679 = 145123629
BaseRepresentation
bin1000001011001…
…0100001101111
32101111220002222
42002302201233
532234120204
63222505555
7564265151
oct202624157
971456088
1034285679
111839837a
12b5952bb
1371458ac
1447a6ad1
153023abe
hex20b286f

34285679 has 4 divisors (see below), whose sum is σ = 34310760. Its totient is φ = 34260600.

The previous prime is 34285673. The next prime is 34285681. The reversal of 34285679 is 97658243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97658243 = 291733479.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34285679 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 (34285673) 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, 10364 + ... + 13265.

It is an arithmetic number, because the mean of its divisors is an integer number (8577690).

Almost surely, 234285679 is an apocalyptic number.

34285679 is a deficient number, since it is larger than the sum of its proper divisors (25081).

34285679 is a wasteful number, since it uses less digits than its factorization.

34285679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25080.

The product of its digits is 362880, while the sum is 44.

The square root of 34285679 is about 5855.3974245989. The cubic root of 34285679 is about 324.8659928787.

The spelling of 34285679 in words is "thirty-four million, two hundred eighty-five thousand, six hundred seventy-nine".

Divisors: 1 1451 23629 34285679