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111944 = 2371999
BaseRepresentation
bin11011010101001000
312200120002
4123111020
512040234
62222132
7644240
oct332510
9180502
10111944
1177118
1254948
133bc51
142cb20
152327e
hex1b548

111944 has 16 divisors (see below), whose sum is σ = 240000. Its totient is φ = 47952.

The previous prime is 111919. The next prime is 111949. The reversal of 111944 is 449111.

111944 = T51 + T52 + ... + T92.

It is not an unprimeable number, because it can be changed into a prime (111949) by changing a digit.

111944 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944 + ... + 1055.

It is an arithmetic number, because the mean of its divisors is an integer number (15000).

2111944 is an apocalyptic number.

111944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

111944 is an abundant number, since it is smaller than the sum of its proper divisors (128056).

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

111944 is a wasteful number, since it uses less digits than its factorization.

111944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012 (or 2008 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 111944 is about 334.5803341501. The cubic root of 111944 is about 48.1948101366.

The spelling of 111944 in words is "one hundred eleven thousand, nine hundred forty-four".

Divisors: 1 2 4 7 8 14 28 56 1999 3998 7996 13993 15992 27986 55972 111944