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160669439 = 749146747
BaseRepresentation
bin10011001001110…
…01111011111111
3102012022212000222
421210321323333
5312112410224
623535411555
73660445010
oct1144717377
9365285028
10160669439
118276a367
1245983bbb
1327396398
14174a5007
15e18ab5e
hex9939eff

160669439 has 8 divisors (see below), whose sum is σ = 184000128. Its totient is φ = 137433240.

The previous prime is 160669433. The next prime is 160669441. The reversal of 160669439 is 934966061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 160669439 - 28 = 160669183 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 160669439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160669433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19937 + ... + 26810.

It is an arithmetic number, because the mean of its divisors is an integer number (23000016).

Almost surely, 2160669439 is an apocalyptic number.

160669439 is a deficient number, since it is larger than the sum of its proper divisors (23330689).

160669439 is an equidigital number, since it uses as much as digits as its factorization.

160669439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47245.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 160669439 is about 12675.5449192530. The cubic root of 160669439 is about 543.6396102326.

The spelling of 160669439 in words is "one hundred sixty million, six hundred sixty-nine thousand, four hundred thirty-nine".

Divisors: 1 7 491 3437 46747 327229 22952777 160669439