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13868610 = 235766041
BaseRepresentation
bin110100111001…
…111001000010
3222002121011020
4310321321002
512022243420
61213130310
7225611160
oct64717102
928077136
1013868610
117912768
124789996
132b476a2
141bb0230
15133e340
hexd39e42

13868610 has 32 divisors (see below), whose sum is σ = 38040192. Its totient is φ = 3169920.

The previous prime is 13868587. The next prime is 13868611. The reversal of 13868610 is 1686831.

13868610 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13868611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32811 + ... + 33230.

It is an arithmetic number, because the mean of its divisors is an integer number (1188756).

Almost surely, 213868610 is an apocalyptic number.

13868610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13868610 is an abundant number, since it is smaller than the sum of its proper divisors (24171582).

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

13868610 is a wasteful number, since it uses less digits than its factorization.

13868610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66058.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 13868610 is about 3724.0582702208. The cubic root of 13868610 is about 240.2578825255.

The spelling of 13868610 in words is "thirteen million, eight hundred sixty-eight thousand, six hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 66041 132082 198123 330205 396246 462287 660410 924574 990615 1386861 1981230 2311435 2773722 4622870 6934305 13868610