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69908 = 2217477
BaseRepresentation
bin10001000100010100
310112220012
4101010110
54214113
61255352
7410546
oct210424
9115805
1069908
1148583
1234558
1325a87
141b696
1515aa8
hex11114

69908 has 6 divisors (see below), whose sum is σ = 122346. Its totient is φ = 34952.

The previous prime is 69899. The next prime is 69911. The reversal of 69908 is 80996.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 44944 + 24964 = 212^2 + 158^2 .

It is an Ulam number.

It is a plaindrome in base 12 and base 16.

It is a congruent number.

It is an unprimeable number.

69908 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 8735 + ... + 8742.

It is an arithmetic number, because the mean of its divisors is an integer number (20391).

269908 is an apocalyptic number.

It is an amenable number.

69908 is a deficient number, since it is larger than the sum of its proper divisors (52438).

69908 is a wasteful number, since it uses less digits than its factorization.

69908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17481 (or 17479 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 69908 is about 264.4012102847. The cubic root of 69908 is about 41.1947899278.

The spelling of 69908 in words is "sixty-nine thousand, nine hundred eight".

Divisors: 1 2 4 17477 34954 69908