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16331013 = 3219432221
BaseRepresentation
bin111110010011…
…000100000101
31010201200221100
4332103010011
513140043023
61342010313
7255545166
oct76230405
933650840
1016331013
119244806
125576999
1334ca42a
14225176d
151678c43
hexf93105

16331013 has 24 divisors (see below), whose sum is σ = 25419680. Its totient is φ = 10069920.

The previous prime is 16331009. The next prime is 16331041. The reversal of 16331013 is 31013361.

It is not a de Polignac number, because 16331013 - 22 = 16331009 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 (16331053) 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 23 ways as a sum of consecutive naturals, for example, 6243 + ... + 8463.

Almost surely, 216331013 is an apocalyptic number.

It is an amenable number.

16331013 is a deficient number, since it is larger than the sum of its proper divisors (9088667).

16331013 is a wasteful number, since it uses less digits than its factorization.

16331013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289 (or 2286 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 16331013 is about 4041.1648073297. The cubic root of 16331013 is about 253.7100717749.

Adding to 16331013 its reverse (31013361), we get a palindrome (47344374).

The spelling of 16331013 in words is "sixteen million, three hundred thirty-one thousand, thirteen".

Divisors: 1 3 9 19 43 57 129 171 387 817 2221 2451 6663 7353 19989 42199 95503 126597 286509 379791 859527 1814557 5443671 16331013