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10331985 = 35688799
BaseRepresentation
bin100111011010…
…011101010001
3201102220211010
4213122131101
510121110420
61005241133
7153551256
oct47323521
921386733
1010331985
115917634
1235631a9
1321a9a01
14152d42d
15d914e0
hex9da751

10331985 has 8 divisors (see below), whose sum is σ = 16531200. Its totient is φ = 5510384.

The previous prime is 10331977. The next prime is 10331987. The reversal of 10331985 is 58913301.

It is a happy number.

10331985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 10331985 - 23 = 10331977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10331987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344385 + ... + 344414.

It is an arithmetic number, because the mean of its divisors is an integer number (2066400).

Almost surely, 210331985 is an apocalyptic number.

10331985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10331985 is a deficient number, since it is larger than the sum of its proper divisors (6199215).

10331985 is an equidigital number, since it uses as much as digits as its factorization.

10331985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688807.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 10331985 is about 3214.3405233422. The cubic root of 10331985 is about 217.8016952093.

It can be divided in two parts, 1033198 and 5, that added together give a triangular number (1033203 = T1437).

The spelling of 10331985 in words is "ten million, three hundred thirty-one thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 688799 2066397 3443995 10331985