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13868235 = 3252910627
BaseRepresentation
bin110100111001…
…110011001011
3222002120122100
4310321303023
512022240420
61213124443
7225610113
oct64716313
928076570
1013868235
117912457
124789723
132b47474
141bb0043
15133e190
hexd39ccb

13868235 has 24 divisors (see below), whose sum is σ = 24869520. Its totient is φ = 7140672.

The previous prime is 13868219. The next prime is 13868249. The reversal of 13868235 is 53286831.

It is not a de Polignac number, because 13868235 - 24 = 13868219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13868235.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4009 + ... + 6618.

It is an arithmetic number, because the mean of its divisors is an integer number (1036230).

Almost surely, 213868235 is an apocalyptic number.

13868235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13868235 is a deficient number, since it is larger than the sum of its proper divisors (11001285).

13868235 is a wasteful number, since it uses less digits than its factorization.

13868235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10667 (or 10664 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 13868235 is about 3724.0079215813. The cubic root of 13868235 is about 240.2557170232.

The spelling of 13868235 in words is "thirteen million, eight hundred sixty-eight thousand, two hundred thirty-five".

Divisors: 1 3 5 9 15 29 45 87 145 261 435 1305 10627 31881 53135 95643 159405 308183 478215 924549 1540915 2773647 4622745 13868235