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10812390768400 = 2452132126472
BaseRepresentation
bin1001110101010111010010…
…1101011111111100010000
31102021122200002210020122011
42131111310231133330100
52404122234014042100
634555051014352304
72164112060055454
oct235256455377420
942248602706564
1010812390768400
11349956678a481
12126761b95b694
136057b11c8100
14295472d52664
1513b3c5e43bba
hex9d574b5ff10

10812390768400 has 135 divisors (see below), whose sum is σ = 28130914813791. Its totient is φ = 3991951691520.

The previous prime is 10812390768397. The next prime is 10812390768461. The reversal of 10812390768400 is 486709321801.

The square root of 10812390768400 is 3288220.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2786909715216 + 8025481053184 = 1669404^2 + 2832928^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 854930877 + ... + 854943523.

Almost surely, 210812390768400 is an apocalyptic number.

10812390768400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10812390768400 is the 3288220-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10812390768400

10812390768400 is an abundant number, since it is smaller than the sum of its proper divisors (17318524045391).

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

10812390768400 is an frugal number, since it uses more digits than its factorization.

10812390768400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25338 (or 12667 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

Multiplying 10812390768400 by its sum of digits (49), we get a square (529807147651600 = 230175402).

The spelling of 10812390768400 in words is "ten trillion, eight hundred twelve billion, three hundred ninety million, seven hundred sixty-eight thousand, four hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 100 104 130 169 200 208 260 325 338 400 520 650 676 845 1040 1300 1352 1690 2600 2704 3380 4225 5200 6760 8450 12647 13520 16900 25294 33800 50588 63235 67600 101176 126470 164411 202352 252940 316175 328822 505880 632350 657644 822055 1011760 1264700 1315288 1644110 2137343 2529400 2630576 3288220 4110275 4274686 5058800 6576440 8220550 8549372 10686715 13152880 16441100 17098744 21373430 32882200 34197488 42746860 53433575 65764400 85493720 106867150 159946609 170987440 213734300 319893218 427468600 639786436 799733045 854937200 1279572872 1599466090 2079305917 2559145744 3198932180 3998665225 4158611834 6397864360 7997330450 8317223668 10396529585 12795728720 15994660900 16634447336 20793059170 27030976921 31989321800 33268894672 41586118340 51982647925 54061953842 63978643600 83172236680 103965295850 108123907684 135154884605 166344473360 207930591700 216247815368 270309769210 415861183400 432495630736 540619538420 675774423025 831722366800 1081239076840 1351548846050 2162478153680 2703097692100 5406195384200 10812390768400