Search a number
-
+
13450660 = 2251374909
BaseRepresentation
bin110011010011…
…110110100100
3221022100211121
4303103312210
511420410120
61200143324
7222220516
oct63236644
927270747
1013450660
117657753
124607b44
132a2c392
141b01bb6
1512aa5aa
hexcd3da4

13450660 has 24 divisors (see below), whose sum is σ = 28458360. Its totient is φ = 5339904.

The previous prime is 13450639. The next prime is 13450663. The reversal of 13450660 is 6605431.

It can be written as a sum of positive squares in 4 ways, for example, as 5788836 + 7661824 = 2406^2 + 2768^2 .

It is not an unprimeable number, because it can be changed into a prime (13450663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286 + ... + 5194.

It is an arithmetic number, because the mean of its divisors is an integer number (1185765).

Almost surely, 213450660 is an apocalyptic number.

13450660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13450660 is an abundant number, since it is smaller than the sum of its proper divisors (15007700).

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

13450660 is a wasteful number, since it uses less digits than its factorization.

13450660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055 (or 5053 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 13450660 is about 3667.5141444853. The cubic root of 13450660 is about 237.8197208321.

The spelling of 13450660 in words is "thirteen million, four hundred fifty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 4909 9818 19636 24545 49090 98180 672533 1345066 2690132 3362665 6725330 13450660