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69929 is a prime number
BaseRepresentation
bin10001000100101001
310112220222
4101010221
54214204
61255425
7410606
oct210451
9115828
1069929
11485a2
1234575
1325aa2
141b6ad
1515abe
hex11129

69929 has 2 divisors, whose sum is σ = 69930. Its totient is φ = 69928.

The previous prime is 69911. The next prime is 69931. The reversal of 69929 is 92996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40000 + 29929 = 200^2 + 173^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-69929 is a prime.

Together with 69931, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15 and base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 69929.

It is not a weakly prime, because it can be changed into another prime (69959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34964 + 34965.

It is an arithmetic number, because the mean of its divisors is an integer number (34965).

269929 is an apocalyptic number.

It is an amenable number.

69929 is a deficient number, since it is larger than the sum of its proper divisors (1).

69929 is an equidigital number, since it uses as much as digits as its factorization.

69929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 35.

The square root of 69929 is about 264.4409196777. The cubic root of 69929 is about 41.1989144151.

The spelling of 69929 in words is "sixty-nine thousand, nine hundred twenty-nine".