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16627013 = 131279001
BaseRepresentation
bin111111011011…
…010101000101
31011021201222022
4333123111011
513224031023
61352212525
7261220154
oct77332505
934251868
1016627013
119427137
12569a145
1335a2090
1422cb59b
1516d67c8
hexfdb545

16627013 has 4 divisors (see below), whose sum is σ = 17906028. Its totient is φ = 15348000.

The previous prime is 16626989. The next prime is 16627057. The reversal of 16627013 is 31072661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31072661 = 263118147.

It can be written as a sum of positive squares in 2 ways, for example, as 9746884 + 6880129 = 3122^2 + 2623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16627013 is a prime.

It is a super-2 number, since 2×166270132 = 552915122604338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16627073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639488 + ... + 639513.

It is an arithmetic number, because the mean of its divisors is an integer number (4476507).

Almost surely, 216627013 is an apocalyptic number.

16627013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16627013 is a deficient number, since it is larger than the sum of its proper divisors (1279015).

16627013 is a wasteful number, since it uses less digits than its factorization.

16627013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279014.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 16627013 is about 4077.6234500012. The cubic root of 16627013 is about 255.2337367325.

Adding to 16627013 its reverse (31072661), we get a palindrome (47699674).

The spelling of 16627013 in words is "sixteen million, six hundred twenty-seven thousand, thirteen".

Divisors: 1 13 1279001 16627013