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69956 = 2217489
BaseRepresentation
bin10001000101000100
310112221222
4101011010
54214311
61255512
7410645
oct210504
9115858
1069956
1148617
1234598
1325ac3
141b6cc
hex11144

69956 has 6 divisors (see below), whose sum is σ = 122430. Its totient is φ = 34976.

The previous prime is 69941. The next prime is 69959. The reversal of 69956 is 65996.

It can be written as a sum of positive squares in only one way, i.e., 36100 + 33856 = 190^2 + 184^2 .

It is a plaindrome in base 16.

It is a zygodrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 69956.

It is not an unprimeable number, because it can be changed into a prime (69959) by changing a digit.

69956 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, 8741 + ... + 8748.

It is an arithmetic number, because the mean of its divisors is an integer number (20405).

269956 is an apocalyptic number.

It is an amenable number.

69956 is a deficient number, since it is larger than the sum of its proper divisors (52474).

69956 is a wasteful number, since it uses less digits than its factorization.

69956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17493 (or 17491 counting only the distinct ones).

The product of its digits is 14580, while the sum is 35.

The square root of 69956 is about 264.4919658515. The cubic root of 69956 is about 41.2042161142.

The spelling of 69956 in words is "sixty-nine thousand, nine hundred fifty-six".

Divisors: 1 2 4 17489 34978 69956