Search a number
-
+
13970308 = 2211383829
BaseRepresentation
bin110101010010…
…101110000100
3222021202122211
4311102232010
512034022213
61215233204
7226513522
oct65225604
928252584
1013970308
117982110
124818804
132b81a71
141bd9312
15135e53d
hexd52b84

13970308 has 24 divisors (see below), whose sum is σ = 26772480. Its totient is φ = 6325920.

The previous prime is 13970293. The next prime is 13970309. The reversal of 13970308 is 80307931.

It is a super-2 number, since 2×139703082 = 390339011229728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13970308.

It is not an unprimeable number, because it can be changed into a prime (13970309) 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, 16438 + ... + 17266.

It is an arithmetic number, because the mean of its divisors is an integer number (1115520).

Almost surely, 213970308 is an apocalyptic number.

It is an amenable number.

13970308 is a deficient number, since it is larger than the sum of its proper divisors (12802172).

13970308 is a wasteful number, since it uses less digits than its factorization.

13970308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13970308 is about 3737.6875203794. The cubic root of 13970308 is about 240.8437202397.

The spelling of 13970308 in words is "thirteen million, nine hundred seventy thousand, three hundred eight".

Divisors: 1 2 4 11 22 44 383 766 829 1532 1658 3316 4213 8426 9119 16852 18238 36476 317507 635014 1270028 3492577 6985154 13970308