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12140800 = 28527271
BaseRepresentation
bin101110010100…
…000100000000
3211211211001021
4232110010000
511102001200
61112115224
7205123630
oct56240400
924754037
1012140800
116942621
124095b14
132691109
1418806c0
1510ec41a
hexb94100

12140800 has 108 divisors (see below), whose sum is σ = 34470016. Its totient is φ = 4147200.

The previous prime is 12140759. The next prime is 12140813. The reversal of 12140800 is 804121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44665 + ... + 44935.

Almost surely, 212140800 is an apocalyptic number.

12140800 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 12140800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17235008).

12140800 is an abundant number, since it is smaller than the sum of its proper divisors (22329216).

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

12140800 is an equidigital number, since it uses as much as digits as its factorization.

12140800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 12140800 is about 3484.3650784612. The cubic root of 12140800 is about 229.8347899900.

Adding to 12140800 its reverse (804121), we get a palindrome (12944921).

The spelling of 12140800 in words is "twelve million, one hundred forty thousand, eight hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 64 70 80 100 112 128 140 160 175 200 224 256 271 280 320 350 400 448 542 560 640 700 800 896 1084 1120 1280 1355 1400 1600 1792 1897 2168 2240 2710 2800 3200 3794 4336 4480 5420 5600 6400 6775 7588 8672 8960 9485 10840 11200 13550 15176 17344 18970 21680 22400 27100 30352 34688 37940 43360 44800 47425 54200 60704 69376 75880 86720 94850 108400 121408 151760 173440 189700 216800 242816 303520 346880 379400 433600 485632 607040 758800 867200 1214080 1517600 1734400 2428160 3035200 6070400 12140800