Search a number
-
+
13945736 = 2371311901
BaseRepresentation
bin110101001100…
…101110001000
3222020111221202
4311030232020
512032230421
61214523332
7226352060
oct65145610
928214852
1013945736
117965702
124806548
132b7381c
141bd03a0
15135710b
hexd4cb88

13945736 has 32 divisors (see below), whose sum is σ = 30127680. Its totient is φ = 5928000.

The previous prime is 13945727. The next prime is 13945739. The reversal of 13945736 is 63754931.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13945736.

It is not an unprimeable number, because it can be changed into a prime (13945739) by changing a digit.

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, 6386 + ... + 8286.

It is an arithmetic number, because the mean of its divisors is an integer number (941490).

Almost surely, 213945736 is an apocalyptic number.

It is an amenable number.

13945736 is an abundant number, since it is smaller than the sum of its proper divisors (16181944).

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

13945736 is a wasteful number, since it uses less digits than its factorization.

13945736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045 (or 2041 counting only the distinct ones).

The product of its digits is 68040, while the sum is 38.

The square root of 13945736 is about 3734.3990145671. The cubic root of 13945736 is about 240.7024328521.

The spelling of 13945736 in words is "thirteen million, nine hundred forty-five thousand, seven hundred thirty-six".

Divisors: 1 2 4 7 8 14 28 56 131 262 524 917 1048 1834 1901 3668 3802 7336 7604 13307 15208 26614 53228 106456 249031 498062 996124 1743217 1992248 3486434 6972868 13945736