Search a number
-
+
13847946 = 237536221
BaseRepresentation
bin110100110100…
…110110001010
3222001112210220
4310310312022
512021113241
61212450510
7225464010
oct64646612
928045726
1013847946
1178a9192
124779a36
132b3b168
141ba68b0
151338166
hexd34d8a

13847946 has 32 divisors (see below), whose sum is σ = 32254848. Its totient is φ = 3881280.

The previous prime is 13847929. The next prime is 13847957. The reversal of 13847946 is 64974831.

13847946 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 13847898 and 13847907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 885 + ... + 5336.

It is an arithmetic number, because the mean of its divisors is an integer number (1007964).

Almost surely, 213847946 is an apocalyptic number.

13847946 is an abundant number, since it is smaller than the sum of its proper divisors (18406902).

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

13847946 is a wasteful number, since it uses less digits than its factorization.

13847946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286.

The product of its digits is 145152, while the sum is 42.

The square root of 13847946 is about 3721.2828433216. The cubic root of 13847946 is about 240.1384964516.

It can be divided in two parts, 138 and 47946, that added together give a palindrome (48084).

The spelling of 13847946 in words is "thirteen million, eight hundred forty-seven thousand, nine hundred forty-six".

Divisors: 1 2 3 6 7 14 21 42 53 106 159 318 371 742 1113 2226 6221 12442 18663 37326 43547 87094 130641 261282 329713 659426 989139 1978278 2307991 4615982 6923973 13847946