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13944960 = 27345269
BaseRepresentation
bin110101001100…
…100010000000
3222020110220000
4311030202000
512032214320
61214520000
7226346601
oct65144200
928213800
1013944960
117965067
124806000
132b73373
141bcdda8
151356c90
hexd4c880

13944960 has 160 divisors (see below), whose sum is σ = 49985100. Its totient is φ = 3704832.

The previous prime is 13944949. The next prime is 13944979. The reversal of 13944960 is 6944931.

It can be written as a sum of positive squares in 2 ways, for example, as 12446784 + 1498176 = 3528^2 + 1224^2 .

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51706 + ... + 51974.

Almost surely, 213944960 is an apocalyptic number.

13944960 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 13944960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24992550).

13944960 is an abundant number, since it is smaller than the sum of its proper divisors (36040140).

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

13944960 is an equidigital number, since it uses as much as digits as its factorization.

13944960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 13944960 is about 3734.2951142083. The cubic root of 13944960 is about 240.6979682006.

The spelling of 13944960 in words is "thirteen million, nine hundred forty-four thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 128 135 144 160 162 180 192 216 240 269 270 288 320 324 360 384 405 432 480 538 540 576 640 648 720 807 810 864 960 1076 1080 1152 1296 1345 1440 1614 1620 1728 1920 2152 2160 2421 2592 2690 2880 3228 3240 3456 4035 4304 4320 4842 5184 5380 5760 6456 6480 7263 8070 8608 8640 9684 10368 10760 12105 12912 12960 14526 16140 17216 17280 19368 21520 21789 24210 25824 25920 29052 32280 34432 36315 38736 43040 43578 48420 51648 51840 58104 64560 72630 77472 86080 87156 96840 103296 108945 116208 129120 145260 154944 172160 174312 193680 217890 232416 258240 290520 309888 348624 387360 435780 464832 516480 581040 697248 774720 871560 929664 1162080 1394496 1549440 1743120 2324160 2788992 3486240 4648320 6972480 13944960