Search a number
-
+
12807504 = 2433231289
BaseRepresentation
bin110000110110…
…110101010000
3220002200121000
4300312311100
511234320004
61134302000
7213601443
oct60666520
926080530
1012807504
117258516
124357900
132865708
1419b565a
1511cec39
hexc36d50

12807504 has 80 divisors (see below), whose sum is σ = 38390400. Its totient is φ = 4080384.

The previous prime is 12807497. The next prime is 12807517. The reversal of 12807504 is 40570821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9292 + ... + 10580.

It is an arithmetic number, because the mean of its divisors is an integer number (479880).

Almost surely, 212807504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12807504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19195200).

12807504 is an abundant number, since it is smaller than the sum of its proper divisors (25582896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12807504 is a wasteful number, since it uses less digits than its factorization.

12807504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 12807504 is about 3578.7573262237. The cubic root of 12807504 is about 233.9671222710.

The spelling of 12807504 in words is "twelve million, eight hundred seven thousand, five hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 23 24 27 36 46 48 54 69 72 92 108 138 144 184 207 216 276 368 414 432 552 621 828 1104 1242 1289 1656 2484 2578 3312 3867 4968 5156 7734 9936 10312 11601 15468 20624 23202 29647 30936 34803 46404 59294 61872 69606 88941 92808 118588 139212 177882 185616 237176 266823 278424 355764 474352 533646 556848 711528 800469 1067292 1423056 1600938 2134584 3201876 4269168 6403752 12807504