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112969 = 173653
BaseRepresentation
bin11011100101001001
312201222001
4123211021
512103334
62231001
7650233
oct334511
9181861
10112969
117796a
1255461
133c55c
142d253
1523714
hex1b949

112969 has 4 divisors (see below), whose sum is σ = 113796. Its totient is φ = 112144.

The previous prime is 112967. The next prime is 112979. The reversal of 112969 is 969211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 969211 = 5318287.

It can be written as a sum of positive squares in 2 ways, for example, as 67600 + 45369 = 260^2 + 213^2 .

It is a cyclic number.

It is not a de Polignac number, because 112969 - 21 = 112967 is a prime.

It is a super-2 number, since 2×1129692 = 25523989922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112967) 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, 154 + ... + 499.

It is an arithmetic number, because the mean of its divisors is an integer number (28449).

2112969 is an apocalyptic number.

It is an amenable number.

112969 is a deficient number, since it is larger than the sum of its proper divisors (827).

112969 is an equidigital number, since it uses as much as digits as its factorization.

112969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826.

The product of its digits is 972, while the sum is 28.

The square root of 112969 is about 336.1086133975. The cubic root of 112969 is about 48.3414598570.

It can be divided in two parts, 112 and 969, that added together give a triangular number (1081 = T46).

The spelling of 112969 in words is "one hundred twelve thousand, nine hundred sixty-nine".

Divisors: 1 173 653 112969