Search a number
-
+
13779104 = 2519131173
BaseRepresentation
bin110100100100…
…000010100000
3221221001101012
4310210002200
512011412404
61211200052
7225056213
oct64440240
927831335
1013779104
117861499
124746028
132b15a21
141b8977a
151322a6e
hexd240a0

13779104 has 48 divisors (see below), whose sum is σ = 28939680. Its totient is φ = 6439680.

The previous prime is 13779091. The next prime is 13779109. The reversal of 13779104 is 40197731.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (13779109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79562 + ... + 79734.

It is an arithmetic number, because the mean of its divisors is an integer number (602910).

Almost surely, 213779104 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 13779104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14469840).

13779104 is an abundant number, since it is smaller than the sum of its proper divisors (15160576).

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

13779104 is a wasteful number, since it uses less digits than its factorization.

13779104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 13779104 is about 3712.0215516616. The cubic root of 13779104 is about 239.7399034110.

The spelling of 13779104 in words is "thirteen million, seven hundred seventy-nine thousand, one hundred four".

Divisors: 1 2 4 8 16 19 32 38 76 131 152 173 262 304 346 524 608 692 1048 1384 2096 2489 2768 3287 4192 4978 5536 6574 9956 13148 19912 22663 26296 39824 45326 52592 79648 90652 105184 181304 362608 430597 725216 861194 1722388 3444776 6889552 13779104