Search a number
-
+
13807984 = 241953857
BaseRepresentation
bin110100101011…
…000101110000
3221222111222211
4310223011300
512013323414
61211541504
7225236341
oct64530560
927874884
1013807984
117881163
12475a894
132b25c08
141b960c8
15132b3c4
hexd2b170

13807984 has 40 divisors (see below), whose sum is σ = 28725840. Its totient is φ = 6409728.

The previous prime is 13807967. The next prime is 13807991. The reversal of 13807984 is 48970831.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 15684 + ... + 16540.

It is an arithmetic number, because the mean of its divisors is an integer number (718146).

Almost surely, 213807984 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 13807984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14362920).

13807984 is an abundant number, since it is smaller than the sum of its proper divisors (14917856).

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

13807984 is a wasteful number, since it uses less digits than its factorization.

13807984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 13807984 is about 3715.9095790937. The cubic root of 13807984 is about 239.9072789978.

The spelling of 13807984 in words is "thirteen million, eight hundred seven thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 16 19 38 53 76 106 152 212 304 424 848 857 1007 1714 2014 3428 4028 6856 8056 13712 16112 16283 32566 45421 65132 90842 130264 181684 260528 363368 726736 862999 1725998 3451996 6903992 13807984