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13240630 = 2513179569
BaseRepresentation
bin110010100000…
…100100110110
3220220200201201
4302200210312
511342200010
61151443114
7220354264
oct62404466
926820651
1013240630
117523977
12452649a
1329878c0
141a89434
15126823a
hexca0936

13240630 has 32 divisors (see below), whose sum is σ = 25855200. Its totient is φ = 4852992.

The previous prime is 13240621. The next prime is 13240651. The reversal of 13240630 is 3604231.

It is a junction number, because it is equal to n+sod(n) for n = 13240598 and 13240607.

It is a congruent number.

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, 22986 + ... + 23554.

It is an arithmetic number, because the mean of its divisors is an integer number (807975).

Almost surely, 213240630 is an apocalyptic number.

13240630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13240630 is a deficient number, since it is larger than the sum of its proper divisors (12614570).

13240630 is a wasteful number, since it uses less digits than its factorization.

13240630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 13240630 is about 3638.7676485316. The cubic root of 13240630 is about 236.5753819301.

Adding to 13240630 its reverse (3604231), we get a palindrome (16844861).

The spelling of 13240630 in words is "thirteen million, two hundred forty thousand, six hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 179 358 569 895 1138 1790 2327 2845 4654 5690 7397 11635 14794 23270 36985 73970 101851 203702 509255 1018510 1324063 2648126 6620315 13240630