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12143034400 = 255272168399
BaseRepresentation
bin10110100111100100…
…00000000000100000
31011100021021001122211
423103302000000200
5144332104100100
65324535211504
7606626042440
oct132362000040
934307231584
1012143034400
115171476522
12242a816b94
1311b6995073
14832a12120
154b10c61ba
hex2d3c80020

12143034400 has 72 divisors (see below), whose sum is σ = 33879081600. Its totient is φ = 4163324160.

The previous prime is 12143034383. The next prime is 12143034413. The reversal of 12143034400 is 443034121.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1078600 + ... + 1089799.

It is an arithmetic number, because the mean of its divisors is an integer number (470542800).

Almost surely, 212143034400 is an apocalyptic number.

12143034400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12143034400 is an abundant number, since it is smaller than the sum of its proper divisors (21736047200).

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

12143034400 is a wasteful number, since it uses less digits than its factorization.

12143034400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168426 (or 2168413 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12143034400 its reverse (443034121), we get a palindrome (12586068521).

The spelling of 12143034400 in words is "twelve billion, one hundred forty-three million, thirty-four thousand, four hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 70 80 100 112 140 160 175 200 224 280 350 400 560 700 800 1120 1400 2800 5600 2168399 4336798 8673596 10841995 15178793 17347192 21683990 30357586 34694384 43367980 54209975 60715172 69388768 75893965 86735960 108419950 121430344 151787930 173471920 216839900 242860688 303575860 346943840 379469825 433679800 485721376 607151720 758939650 867359600 1214303440 1517879300 1734719200 2428606880 3035758600 6071517200 12143034400