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69953 = 135381
BaseRepresentation
bin10001000101000001
310112221212
4101011001
54214303
61255505
7410642
oct210501
9115855
1069953
1148614
1234595
1325ac0
141b6c9
1515ad8
hex11141

69953 has 4 divisors (see below), whose sum is σ = 75348. Its totient is φ = 64560.

The previous prime is 69941. The next prime is 69959. The reversal of 69953 is 35996.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16129 + 53824 = 127^2 + 232^2 .

It is a cyclic number.

It is not a de Polignac number, because 69953 - 28 = 69697 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 69953.

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

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 in 3 ways as a sum of consecutive naturals, for example, 2678 + ... + 2703.

It is an arithmetic number, because the mean of its divisors is an integer number (18837).

269953 is an apocalyptic number.

It is an amenable number.

69953 is a deficient number, since it is larger than the sum of its proper divisors (5395).

69953 is a wasteful number, since it uses less digits than its factorization.

69953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5394.

The product of its digits is 7290, while the sum is 32.

The square root of 69953 is about 264.4862945409. The cubic root of 69953 is about 41.2036271039.

The spelling of 69953 in words is "sixty-nine thousand, nine hundred fifty-three".

Divisors: 1 13 5381 69953