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13824480 = 253583347
BaseRepresentation
bin110100101111…
…000111100000
3222000100121210
4310233013200
512014340410
61212150120
7225335415
oct64570740
928010553
1013824480
11789259a
124768340
132b30587
141b9c10c
151331220
hexd2f1e0

13824480 has 96 divisors (see below), whose sum is σ = 44198784. Its totient is φ = 3631616.

The previous prime is 13824479. The next prime is 13824487. The reversal of 13824480 is 8442831.

13824480 is digitally balanced in base 2, because in such base 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 (96).

It is a super-2 number, since 2×138244802 = 382232494540800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13824487) 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, 39667 + ... + 40013.

It is an arithmetic number, because the mean of its divisors is an integer number (460404).

Almost surely, 213824480 is an apocalyptic number.

13824480 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 13824480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22099392).

13824480 is an abundant number, since it is smaller than the sum of its proper divisors (30374304).

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

13824480 is a wasteful number, since it uses less digits than its factorization.

13824480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 13824480 is about 3718.1285615212. The cubic root of 13824480 is about 240.0027777456.

Multiplying 13824480 by its sum of digits (30), we get a triangular number (414734400 = T28800).

The spelling of 13824480 in words is "thirteen million, eight hundred twenty-four thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 83 96 120 160 166 240 249 332 347 415 480 498 664 694 830 996 1041 1245 1328 1388 1660 1735 1992 2082 2490 2656 2776 3320 3470 3984 4164 4980 5205 5552 6640 6940 7968 8328 9960 10410 11104 13280 13880 16656 19920 20820 27760 28801 33312 39840 41640 55520 57602 83280 86403 115204 144005 166560 172806 230408 288010 345612 432015 460816 576020 691224 864030 921632 1152040 1382448 1728060 2304080 2764896 3456120 4608160 6912240 13824480