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1368744800 = 255217195297
BaseRepresentation
bin101000110010101…
…0110001101100000
310112101112102212212
41101211112031200
510300344313200
6343452541252
745630065423
oct12145261540
93471472785
101368744800
11642691255
12322481828
1318a757387
14cdad79ba
158026e035
hex51956360

1368744800 has 144 divisors (see below), whose sum is σ = 3724917840. Its totient is φ = 488079360.

The previous prime is 1368744791. The next prime is 1368744803. The reversal of 1368744800 is 84478631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368744803) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 255752 + ... + 261048.

It is an arithmetic number, because the mean of its divisors is an integer number (25867485).

Almost surely, 21368744800 is an apocalyptic number.

1368744800 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 1368744800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862458920).

1368744800 is an abundant number, since it is smaller than the sum of its proper divisors (2356173040).

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

1368744800 is a wasteful number, since it uses less digits than its factorization.

1368744800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5353 (or 5340 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 1368744800 is about 36996.5511906178. The cubic root of 1368744800 is about 1110.3012465917.

It can be divided in two parts, 1368 and 744800, that multiplied together give a square (1018886400 = 319202).

The spelling of 1368744800 in words is "one billion, three hundred sixty-eight million, seven hundred forty-four thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 17 19 20 25 32 34 38 40 50 68 76 80 85 95 100 136 152 160 170 190 200 272 304 323 340 380 400 425 475 544 608 646 680 760 800 850 950 1292 1360 1520 1615 1700 1900 2584 2720 3040 3230 3400 3800 5168 5297 6460 6800 7600 8075 10336 10594 12920 13600 15200 16150 21188 25840 26485 32300 42376 51680 52970 64600 84752 90049 100643 105940 129200 132425 169504 180098 201286 211880 258400 264850 360196 402572 423760 450245 503215 529700 720392 805144 847520 900490 1006430 1059400 1440784 1610288 1710931 1800980 2012860 2118800 2251225 2516075 2881568 3220576 3421862 3601960 4025720 4237600 4502450 5032150 6843724 7203920 8051440 8554655 9004900 10064300 13687448 14407840 16102880 17109310 18009800 20128600 27374896 34218620 36019600 40257200 42773275 54749792 68437240 72039200 80514400 85546550 136874480 171093100 273748960 342186200 684372400 1368744800