Search a number
-
+
13023128 = 2310131607
BaseRepresentation
bin110001101011…
…011110011000
3220111122101002
4301223132120
511313220003
61143044132
7215460206
oct61533630
926448332
1013023128
117395518
124440648
13290c8c1
141a30076
151223a88
hexc6b798

13023128 has 16 divisors (see below), whose sum is σ = 24457680. Its totient is φ = 6501088.

The previous prime is 13023119. The next prime is 13023133. The reversal of 13023128 is 82132031.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7301 + ... + 8907.

It is an arithmetic number, because the mean of its divisors is an integer number (1528605).

Almost surely, 213023128 is an apocalyptic number.

It is an amenable number.

13023128 is a deficient number, since it is larger than the sum of its proper divisors (11434552).

13023128 is a wasteful number, since it uses less digits than its factorization.

13023128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626 (or 2622 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 13023128 is about 3608.7571267682. The cubic root of 13023128 is about 235.2728263382.

Adding to 13023128 its reverse (82132031), we get a palindrome (95155159).

The spelling of 13023128 in words is "thirteen million, twenty-three thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 1013 1607 2026 3214 4052 6428 8104 12856 1627891 3255782 6511564 13023128