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13824880 = 2452959101
BaseRepresentation
bin110100101111…
…001101110000
3222000101011121
4310233031300
512014344010
61212152024
7225336526
oct64571560
928011147
1013824880
117892923
124768614
132b30804
141b9c316
1513313da
hexd2f370

13824880 has 80 divisors (see below), whose sum is σ = 34149600. Its totient is φ = 5196800.

The previous prime is 13824841. The next prime is 13824901. The reversal of 13824880 is 8842831.

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

It is a super-2 number, since 2×138248802 = 382254614028800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 136830 + ... + 136930.

It is an arithmetic number, because the mean of its divisors is an integer number (426870).

Almost surely, 213824880 is an apocalyptic number.

13824880 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 13824880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17074800).

13824880 is an abundant number, since it is smaller than the sum of its proper divisors (20324720).

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

13824880 is a wasteful number, since it uses less digits than its factorization.

13824880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 13824880 is about 3718.1823516337. The cubic root of 13824880 is about 240.0050924845.

The spelling of 13824880 in words is "thirteen million, eight hundred twenty-four thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 59 80 101 116 118 145 202 232 236 290 295 404 464 472 505 580 590 808 944 1010 1160 1180 1616 1711 2020 2320 2360 2929 3422 4040 4720 5858 5959 6844 8080 8555 11716 11918 13688 14645 17110 23432 23836 27376 29290 29795 34220 46864 47672 58580 59590 68440 95344 117160 119180 136880 172811 234320 238360 345622 476720 691244 864055 1382488 1728110 2764976 3456220 6912440 13824880