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69942 = 2311657
BaseRepresentation
bin10001000100110110
310112221110
4101010312
54214232
61255450
7410625
oct210466
9115843
1069942
1148604
1234586
1325ab2
141b6bc
1515acc
hex11136

69942 has 8 divisors (see below), whose sum is σ = 139896. Its totient is φ = 23312.

The previous prime is 69941. The next prime is 69959. The reversal of 69942 is 24996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a plaindrome in base 15 and base 16.

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 69942.

It is not an unprimeable number, because it can be changed into a prime (69941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5823 + ... + 5834.

It is an arithmetic number, because the mean of its divisors is an integer number (17487).

269942 is an apocalyptic number.

69942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69948).

69942 is a wasteful number, since it uses less digits than its factorization.

69942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11662.

The product of its digits is 3888, while the sum is 30.

The square root of 69942 is about 264.4654986950. The cubic root of 69942 is about 41.2014672554.

It can be divided in two parts, 6994 and 2, that added together give a palindrome (6996).

The spelling of 69942 in words is "sixty-nine thousand, nine hundred forty-two".

Divisors: 1 2 3 6 11657 23314 34971 69942