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10019 = 43233
BaseRepresentation
bin10011100100011
3111202002
42130203
5310034
6114215
741132
oct23443
914662
1010019
117589
12596b
134739
143919
152e7e
hex2723

10019 has 4 divisors (see below), whose sum is σ = 10296. Its totient is φ = 9744.

The previous prime is 10009. The next prime is 10037. The reversal of 10019 is 91001.

10019 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10019 - 212 = 5923 is a prime.

It is a super-2 number, since 2×100192 = 200760722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9991 and 10009.

It is not an unprimeable number, because it can be changed into a prime (10009) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 74 + ... + 159.

It is an arithmetic number, because the mean of its divisors is an integer number (2574).

210019 is an apocalyptic number.

10019 is a deficient number, since it is larger than the sum of its proper divisors (277).

10019 is an equidigital number, since it uses as much as digits as its factorization.

10019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 10019 is about 100.0949549178. The cubic root of 10019 is about 21.5579830208.

It can be divided in two parts, 1001 and 9, that multiplied together give a palindrome (9009).

The spelling of 10019 in words is "ten thousand, nineteen".

Divisors: 1 43 233 10019