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14491013 = 37457857
BaseRepresentation
bin110111010001…
…110110000101
31000021012221012
4313101312011
512202203023
61234332005
7234112565
oct67216605
930235835
1014491013
1181a8349
124a2a005
133004a84
141cd2da5
151413978
hexdd1d85

14491013 has 8 divisors (see below), whose sum is σ = 14932632. Its totient is φ = 14052096.

The previous prime is 14490947. The next prime is 14491073. The reversal of 14491013 is 31019441.

It can be written as a sum of positive squares in 4 ways, for example, as 11276164 + 3214849 = 3358^2 + 1793^2 .

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 14491013 - 218 = 14228869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14491013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14491073) 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, 16481 + ... + 17337.

It is an arithmetic number, because the mean of its divisors is an integer number (1866579).

Almost surely, 214491013 is an apocalyptic number.

It is an amenable number.

14491013 is a deficient number, since it is larger than the sum of its proper divisors (441619).

14491013 is an equidigital number, since it uses as much as digits as its factorization.

14491013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 14491013 is about 3806.7063191163. The cubic root of 14491013 is about 243.7995588032.

Adding to 14491013 its sum of digits (23), we get a triangular number (14491036 = T5383).

The spelling of 14491013 in words is "fourteen million, four hundred ninety-one thousand, thirteen".

Divisors: 1 37 457 857 16909 31709 391649 14491013