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130025869281 = 32741122232
BaseRepresentation
bin111100100011000100…
…1010100111111100001
3110102121201121112121100
41321012021110333201
54112243110304111
6135422201345013
712252106440000
oct1710611247741
9412551545540
10130025869281
1150164239100
1221249498169
13c3523615b9
146416ac0c37
1535b0273756
hex1e46254fe1

130025869281 has 135 divisors (see below), whose sum is σ = 241918832337. Its totient is φ = 67243009680.

The previous prime is 130025869273. The next prime is 130025869291. The reversal of 130025869281 is 182968520031.

The square root of 130025869281 is 360591.

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

130025869281 is a `hidden beast` number, since 1 + 300 + 2 + 5 + 8 + 69 + 281 = 666.

It is not a de Polignac number, because 130025869281 - 23 = 130025869273 is a prime.

It is a super-3 number, since 3×1300258692813 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (130025869201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 583075536 + ... + 583075758.

Almost surely, 2130025869281 is an apocalyptic number.

130025869281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130025869281 is the 360591-st square number.

130025869281 is the 180296-th centered octagonal number.

It is an amenable number.

130025869281 is a deficient number, since it is larger than the sum of its proper divisors (111892963056).

130025869281 is an frugal number, since it uses more digits than its factorization.

130025869281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 130025869281 in words is "one hundred thirty billion, twenty-five million, eight hundred sixty-nine thousand, two hundred eighty-one".

Divisors: 1 3 7 9 11 21 33 49 63 77 99 121 147 223 231 343 363 441 539 669 693 847 1029 1089 1561 1617 2007 2401 2453 2541 3087 3773 4683 4851 5929 7203 7359 7623 10927 11319 14049 17171 17787 21609 22077 26411 26983 32781 33957 41503 49729 51513 53361 76489 79233 80949 98343 120197 124509 149187 154539 188881 229467 237699 242847 290521 348103 360591 373527 447561 535423 547019 566643 688401 841379 871563 1044309 1081773 1322167 1606269 1641057 1699929 2436721 2524137 2614689 3132927 3829133 3966501 4818807 4923171 5889653 6017209 7310163 7572411 9255169 11487399 11899503 17057047 17668959 18051627 21930489 26803931 27765507 34462197 42120463 51171141 53006877 54154881 64786183 80411793 83296521 119399329 126361389 153513423 187627517 194358549 241235379 294843241 358197987 379084167 562882551 583075647 884529723 1074593961 1313392619 1688647653 2063902687 2653589169 3940177857 6191708061 11820533571 14447318809 18575124183 43341956427 130025869281