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40024 = 235003
BaseRepresentation
bin1001110001011000
32000220101
421301120
52240044
6505144
7224455
oct116130
960811
1040024
1128086
121b1b4
13152aa
141082c
15bcd4
hex9c58

40024 has 8 divisors (see below), whose sum is σ = 75060. Its totient is φ = 20008.

The previous prime is 40013. The next prime is 40031. The reversal of 40024 is 42004.

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

It is a hoax number, since the sum of its digits (10) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 7.

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2494 + ... + 2509.

240024 is an apocalyptic number.

It is an amenable number.

40024 is a deficient number, since it is larger than the sum of its proper divisors (35036).

40024 is a wasteful number, since it uses less digits than its factorization.

40024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009 (or 5005 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 40024 is about 200.0599910027. The cubic root of 40024 is about 34.2063574698.

Adding to 40024 its reverse (42004), we get a palindrome (82028).

It can be divided in two parts, 400 and 24, that added together give a palindrome (424).

The spelling of 40024 in words is "forty thousand, twenty-four", and thus it is an iban number.

Divisors: 1 2 4 8 5003 10006 20012 40024