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868290376041 = 321141721512
BaseRepresentation
bin11001010001010100010…
…00111011000101101001
310002000012122112021200100
430220222020323011221
5103211224314013131
61502515340100013
7116506021264164
oct14505210730551
93060178467610
10868290376041
11305270310000
12120344834609
1363b581580ca
143004dcacadb
15178bd79c7e6
hexca2a23b169

868290376041 has 135 divisors (see below), whose sum is σ = 1475305337415. Its totient is φ = 492001488000.

The previous prime is 868290376027. The next prime is 868290376061. The reversal of 868290376041 is 140673092868.

The square root of 868290376041 is 931821.

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

868290376041 is a `hidden beast` number, since 8 + 6 + 8 + 29 + 0 + 3 + 7 + 604 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 676004618025 + 192285758016 = 822195^2 + 438504^2 .

It is not a de Polignac number, because 868290376041 - 213 = 868290367849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (868290376061) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 5750267316 + ... + 5750267466.

Almost surely, 2868290376041 is an apocalyptic number.

868290376041 is the 931821-st square number.

868290376041 is the 465911-st centered octagonal number.

It is an amenable number.

868290376041 is a deficient number, since it is larger than the sum of its proper divisors (607014961374).

868290376041 is an equidigital number, since it uses as much as digits as its factorization.

868290376041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 868290376041 in words is "eight hundred sixty-eight billion, two hundred ninety million, three hundred seventy-six thousand, forty-one".

Divisors: 1 3 9 11 17 33 51 99 121 151 153 187 289 363 453 561 867 1089 1331 1359 1661 1683 2057 2567 2601 3179 3993 4983 6171 7701 9537 11979 14641 14949 18271 18513 22627 22801 23103 28237 28611 34969 43639 43923 54813 67881 68403 84711 104907 130917 131769 164439 200981 203643 205209 248897 250811 254133 310607 314721 384659 387617 392751 480029 602943 746691 752433 931821 1153977 1162851 1440087 1808829 2210791 2240073 2257299 2758921 2795463 3416677 3461931 3488553 4231249 4263787 4320261 5280319 6589489 6632373 8276763 10250031 12693747 12791361 15840957 19768467 19897119 24830289 30348131 30750093 37583447 38081241 38374083 46901657 47522871 58083509 59305401 72484379 91044393 112750341 140704971 174250527 217453137 273133179 333829441 338251023 422114913 515918227 522751581 638918599 652359411 797328169 1001488323 1547754681 1916755797 2391984507 3004464969 4643264043 5675100497 5750267391 7175953521 8770609859 17025301491 26311829577 51075904473 78935488731 96476708449 289430125347 868290376041