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29144 = 233643
BaseRepresentation
bin111000111011000
31110222102
413013120
51413034
6342532
7150653
oct70730
943872
1029144
111a995
1214a48
131035b
14a89a
15897e
hex71d8

29144 has 8 divisors (see below), whose sum is σ = 54660. Its totient is φ = 14568.

The previous prime is 29137. The next prime is 29147. The reversal of 29144 is 44192.

It is a tau number, because it is divible by the number of its divisors (8).

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 29144.

It is not an unprimeable number, because it can be changed into a prime (29147) by changing a digit.

29144 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 as a sum of consecutive naturals, namely, 1814 + ... + 1829.

229144 is an apocalyptic number.

It is an amenable number.

29144 is a deficient number, since it is larger than the sum of its proper divisors (25516).

29144 is a wasteful number, since it uses less digits than its factorization.

29144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649 (or 3645 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 29144 is about 170.7161386630. The cubic root of 29144 is about 30.7739364598.

The spelling of 29144 in words is "twenty-nine thousand, one hundred forty-four".

Divisors: 1 2 4 8 3643 7286 14572 29144