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69992 = 2313673
BaseRepresentation
bin10001000101101000
310120000022
4101011220
54214432
61300012
7411026
oct210550
9116008
1069992
114864a
1234608
1325b20
141b716
1515b12
hex11168

69992 has 16 divisors (see below), whose sum is σ = 141540. Its totient is φ = 32256.

The previous prime is 69991. The next prime is 69997. The reversal of 69992 is 29996.

It can be written as a sum of positive squares in 2 ways, for example, as 64516 + 5476 = 254^2 + 74^2 .

It is a plaindrome in 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 69992.

It is not an unprimeable number, because it can be changed into a prime (69991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233 + ... + 440.

269992 is an apocalyptic number.

It is an amenable number.

69992 is an abundant number, since it is smaller than the sum of its proper divisors (71548).

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 (70770).

69992 is a wasteful number, since it uses less digits than its factorization.

69992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692 (or 688 counting only the distinct ones).

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

The square root of 69992 is about 264.5600120956. The cubic root of 69992 is about 41.2112829248.

The spelling of 69992 in words is "sixty-nine thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 13 26 52 104 673 1346 2692 5384 8749 17498 34996 69992