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12444080 = 2451179179
BaseRepresentation
bin101111011110…
…000110110000
3212102020001212
4233132012300
511141202310
61122415252
7210526055
oct57360660
925366055
1012444080
11702a470
124201528
13276917c
14191d02c
15115c205
hexbde1b0

12444080 has 80 divisors (see below), whose sum is σ = 32140800. Its totient is φ = 4442880.

The previous prime is 12444077. The next prime is 12444097. The reversal of 12444080 is 8044421.

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

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, 69431 + ... + 69609.

It is an arithmetic number, because the mean of its divisors is an integer number (401760).

Almost surely, 212444080 is an apocalyptic number.

12444080 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 12444080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16070400).

12444080 is an abundant number, since it is smaller than the sum of its proper divisors (19696720).

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

12444080 is a wasteful number, since it uses less digits than its factorization.

12444080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 12444080 is about 3527.6167592299. The cubic root of 12444080 is about 231.7328474609.

The spelling of 12444080 in words is "twelve million, four hundred forty-four thousand, eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 79 80 88 110 158 176 179 220 316 358 395 440 632 716 790 869 880 895 1264 1432 1580 1738 1790 1969 2864 3160 3476 3580 3938 4345 6320 6952 7160 7876 8690 9845 13904 14141 14320 15752 17380 19690 28282 31504 34760 39380 56564 69520 70705 78760 113128 141410 155551 157520 226256 282820 311102 565640 622204 777755 1131280 1244408 1555510 2488816 3111020 6222040 12444080