Search a number
-
+
13921200 = 2433521289
BaseRepresentation
bin110101000110…
…101110110000
3222012021022000
4311012232300
512030434300
61214214000
7226220406
oct65065660
928167260
1013921200
117949227
1247b4300
132b655c7
141bc5476
15134ec00
hexd46bb0

13921200 has 120 divisors (see below), whose sum is σ = 49587600. Its totient is φ = 3709440.

The previous prime is 13921163. The next prime is 13921211. The reversal of 13921200 is 212931.

It is a happy number.

13921200 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 a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 10156 + ... + 11444.

It is an arithmetic number, because the mean of its divisors is an integer number (413230).

Almost surely, 213921200 is an apocalyptic number.

13921200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13921200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24793800).

13921200 is an abundant number, since it is smaller than the sum of its proper divisors (35666400).

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

13921200 is a wasteful number, since it uses less digits than its factorization.

13921200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 13921200 is about 3731.1124346500. The cubic root of 13921200 is about 240.5611867665.

The spelling of 13921200 in words is "thirteen million, nine hundred twenty-one thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 36 40 45 48 50 54 60 72 75 80 90 100 108 120 135 144 150 180 200 216 225 240 270 300 360 400 432 450 540 600 675 720 900 1080 1200 1289 1350 1800 2160 2578 2700 3600 3867 5156 5400 6445 7734 10312 10800 11601 12890 15468 19335 20624 23202 25780 30936 32225 34803 38670 46404 51560 58005 61872 64450 69606 77340 92808 96675 103120 116010 128900 139212 154680 174015 185616 193350 232020 257800 278424 290025 309360 348030 386700 464040 515600 556848 580050 696060 773400 870075 928080 1160100 1392120 1546800 1740150 2320200 2784240 3480300 4640400 6960600 13921200