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40308 = 2233359
BaseRepresentation
bin1001110101110100
32001021220
421311310
52242213
6510340
7225342
oct116564
961256
1040308
1128314
121b3b0
1315468
1410992
15be23
hex9d74

40308 has 12 divisors (see below), whose sum is σ = 94080. Its totient is φ = 13432.

The previous prime is 40289. The next prime is 40343. The reversal of 40308 is 80304.

Adding to 40308 its product of nonzero digits (96), we get a palindrome (40404).

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

40308 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, 1668 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (7840).

240308 is an apocalyptic number.

It is an amenable number.

40308 is an abundant number, since it is smaller than the sum of its proper divisors (53772).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47040).

40308 is a wasteful number, since it uses less digits than its factorization.

40308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366 (or 3364 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 40308 is about 200.7685234293. The cubic root of 40308 is about 34.2870733588.

The spelling of 40308 in words is "forty thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 3359 6718 10077 13436 20154 40308