Search a number
-
+
13882320 = 243356427
BaseRepresentation
bin110100111101…
…001111010000
3222010021222000
4310331033100
512023213240
61213314000
7225666144
oct64751720
928107860
1013882320
117921aa1
124795900
132b509ba
141bb5224
151343430
hexd3d3d0

13882320 has 80 divisors (see below), whose sum is σ = 47824320. Its totient is φ = 3701376.

The previous prime is 13882303. The next prime is 13882321. The reversal of 13882320 is 2328831.

13882320 = T334 + T335 + ... + T493.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13882321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054 + ... + 5373.

It is an arithmetic number, because the mean of its divisors is an integer number (597804).

Almost surely, 213882320 is an apocalyptic number.

13882320 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 13882320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23912160).

13882320 is an abundant number, since it is smaller than the sum of its proper divisors (33942000).

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

13882320 is a wasteful number, since it uses less digits than its factorization.

13882320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6449 (or 6437 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 13882320 is about 3725.8985493435. The cubic root of 13882320 is about 240.3370264999.

The spelling of 13882320 in words is "thirteen million, eight hundred eighty-two thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 108 120 135 144 180 216 240 270 360 432 540 720 1080 2160 6427 12854 19281 25708 32135 38562 51416 57843 64270 77124 96405 102832 115686 128540 154248 173529 192810 231372 257080 289215 308496 347058 385620 462744 514160 578430 694116 771240 867645 925488 1156860 1388232 1542480 1735290 2313720 2776464 3470580 4627440 6941160 13882320