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1288422141720 = 233573174838599
BaseRepresentation
bin10010101111111011111…
…100011010111100011000
311120011122100120022110020
4102233323330122330120
5132102142032013340
62423520513550440
7162041205335460
oct22577374327430
94504570508406
101288422141720
1145746478997a
12189855b75420
139466155741c
1446507a56ba0
15237ac78d9d0
hex12bfbf1af18

1288422141720 has 128 divisors (see below), whose sum is σ = 4431383424000. Its totient is φ = 293567417856.

The previous prime is 1288422141683. The next prime is 1288422141757. The reversal of 1288422141720 is 271412248821.

It is an interprime number because it is at equal distance from previous prime (1288422141683) and next prime (1288422141757).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2153020 + ... + 2685579.

It is an arithmetic number, because the mean of its divisors is an integer number (34620183000).

Almost surely, 21288422141720 is an apocalyptic number.

1288422141720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1288422141720 is an abundant number, since it is smaller than the sum of its proper divisors (3142961282280).

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

1288422141720 is a wasteful number, since it uses less digits than its factorization.

1288422141720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4838937 (or 4838933 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 42.

The spelling of 1288422141720 in words is "one trillion, two hundred eighty-eight billion, four hundred twenty-two million, one hundred forty-one thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 317 420 634 840 951 1268 1585 1902 2219 2536 3170 3804 4438 4755 6340 6657 7608 8876 9510 11095 12680 13314 17752 19020 22190 26628 33285 38040 44380 53256 66570 88760 133140 266280 4838599 9677198 14515797 19354396 24192995 29031594 33870193 38708792 48385990 58063188 67740386 72578985 96771980 101610579 116126376 135480772 145157970 169350965 193543960 203221158 270961544 290315940 338701930 406442316 508052895 580631880 677403860 812884632 1016105790 1354807720 1533835883 2032211580 3067671766 4064423160 4601507649 6135343532 7669179415 9203015298 10736851181 12270687064 15338358830 18406030596 21473702362 23007538245 30676717660 32210553543 36812061192 42947404724 46015076490 53684255905 61353435320 64421107086 85894809448 92030152980 107368511810 128842214172 161052767715 184060305960 214737023620 257684428344 322105535430 429474047240 644211070860 1288422141720