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69893 = 371889
BaseRepresentation
bin10001000100000101
310112212122
4101010011
54214033
61255325
7410525
oct210405
9115778
1069893
114856a
1234545
1325a75
141b685
1515a98
hex11105

69893 has 4 divisors (see below), whose sum is σ = 71820. Its totient is φ = 67968.

The previous prime is 69877. The next prime is 69899. The reversal of 69893 is 39896.

69893 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

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 49729 + 20164 = 223^2 + 142^2 .

It is a cyclic number.

It is not a de Polignac number, because 69893 - 24 = 69877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69899) 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, 908 + ... + 981.

It is an arithmetic number, because the mean of its divisors is an integer number (17955).

269893 is an apocalyptic number.

It is an amenable number.

69893 is a deficient number, since it is larger than the sum of its proper divisors (1927).

69893 is a wasteful number, since it uses less digits than its factorization.

69893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926.

The product of its digits is 11664, while the sum is 35.

The square root of 69893 is about 264.3728427808. The cubic root of 69893 is about 41.1918433597.

The spelling of 69893 in words is "sixty-nine thousand, eight hundred ninety-three".

Divisors: 1 37 1889 69893