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13071650 = 252261433
BaseRepresentation
bin110001110111…
…010100100010
3220121002221012
4301313110202
511321243100
61144100522
7216051524
oct61672442
926532835
1013071650
117418a19
124464742
132928a07
141a43a14
151233135
hexc77522

13071650 has 12 divisors (see below), whose sum is σ = 24313362. Its totient is φ = 5228640.

The previous prime is 13071649. The next prime is 13071671. The reversal of 13071650 is 5617031.

13071650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 5678689 + 7392961 = 2383^2 + 2719^2 .

It is a Curzon number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130667 + ... + 130766.

Almost surely, 213071650 is an apocalyptic number.

13071650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13071650 is a deficient number, since it is larger than the sum of its proper divisors (11241712).

13071650 is a wasteful number, since it uses less digits than its factorization.

13071650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261445 (or 261440 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 13071650 is about 3615.4736895737. The cubic root of 13071650 is about 235.5646599496.

Adding to 13071650 its reverse (5617031), we get a palindrome (18688681).

The spelling of 13071650 in words is "thirteen million, seventy-one thousand, six hundred fifty".

Divisors: 1 2 5 10 25 50 261433 522866 1307165 2614330 6535825 13071650