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40255 = 58397
BaseRepresentation
bin1001110100111111
32001012221
421310333
52242010
6510211
7225235
oct116477
961187
1040255
1128276
121b367
1315427
1410955
15bdda
hex9d3f

40255 has 8 divisors (see below), whose sum is σ = 49392. Its totient is φ = 31488.

The previous prime is 40253. The next prime is 40277. The reversal of 40255 is 55204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40255 - 21 = 40253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367 + ... + 463.

It is an arithmetic number, because the mean of its divisors is an integer number (6174).

240255 is an apocalyptic number.

40255 is a deficient number, since it is larger than the sum of its proper divisors (9137).

40255 is an equidigital number, since it uses as much as digits as its factorization.

40255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 40255 is about 200.6364872101. The cubic root of 40255 is about 34.2720390237.

Adding to 40255 its reverse (55204), we get a palindrome (95459).

The spelling of 40255 in words is "forty thousand, two hundred fifty-five".

Divisors: 1 5 83 97 415 485 8051 40255