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69968 = 244373
BaseRepresentation
bin10001000101010000
310112222102
4101011100
54214333
61255532
7410663
oct210520
9115872
1069968
1148628
12345a8
1325b02
141b6da
1515ae8
hex11150

69968 has 10 divisors (see below), whose sum is σ = 135594. Its totient is φ = 34976.

The previous prime is 69959. The next prime is 69991. The reversal of 69968 is 86996.

It can be written as a sum of positive squares in only one way, i.e., 61504 + 8464 = 248^2 + 92^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2171 + ... + 2202.

269968 is an apocalyptic number.

It is an amenable number.

69968 is a deficient number, since it is larger than the sum of its proper divisors (65626).

69968 is a wasteful number, since it uses less digits than its factorization.

69968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381 (or 4375 counting only the distinct ones).

The product of its digits is 23328, while the sum is 38.

The square root of 69968 is about 264.5146498778. The cubic root of 69968 is about 41.2065719871.

It can be divided in two parts, 699 and 68, that added together give a palindrome (767).

The spelling of 69968 in words is "sixty-nine thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 4373 8746 17492 34984 69968