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13608693 = 3271911369
BaseRepresentation
bin110011111010…
…011011110101
3221121101121200
4303322123311
511440434233
61203403113
7223446330
oct63723365
927541550
1013608693
11775545a
124683499
132a862a7
141b43617
1512dc313
hexcfa6f5

13608693 has 24 divisors (see below), whose sum is σ = 23649600. Its totient is φ = 7366464.

The previous prime is 13608691. The next prime is 13608697. The reversal of 13608693 is 39680631.

It is a happy number.

It is not a de Polignac number, because 13608693 - 21 = 13608691 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13608691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4488 + ... + 6881.

It is an arithmetic number, because the mean of its divisors is an integer number (985400).

Almost surely, 213608693 is an apocalyptic number.

It is an amenable number.

13608693 is a deficient number, since it is larger than the sum of its proper divisors (10040907).

13608693 is a wasteful number, since it uses less digits than its factorization.

13608693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11401 (or 11398 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 13608693 is about 3688.9962049316. The cubic root of 13608693 is about 238.7474851484.

The spelling of 13608693 in words is "thirteen million, six hundred eight thousand, six hundred ninety-three".

Divisors: 1 3 7 9 19 21 57 63 133 171 399 1197 11369 34107 79583 102321 216011 238749 648033 716247 1512077 1944099 4536231 13608693