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13125433508 = 221117137349367
BaseRepresentation
bin11000011100101011…
…00011100010100100
31020212201211002212222
430032111203202210
5203340102333013
610010231331512
7643155225665
oct141625434244
936781732788
1013125433508
115625a68510
122663820b98
13131237bb05
148c729b36c
1551c47c508
hex30e5638a4

13125433508 has 96 divisors (see below), whose sum is σ = 26874892800. Its totient is φ = 5543055360.

The previous prime is 13125433471. The next prime is 13125433547. The reversal of 13125433508 is 80533452131.

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, 35763941 + ... + 35764307.

It is an arithmetic number, because the mean of its divisors is an integer number (279946800).

Almost surely, 213125433508 is an apocalyptic number.

It is an amenable number.

13125433508 is an abundant number, since it is smaller than the sum of its proper divisors (13749459292).

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

13125433508 is a wasteful number, since it uses less digits than its factorization.

13125433508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 13125433508 its reverse (80533452131), we get a palindrome (93658885639).

The spelling of 13125433508 in words is "thirteen billion, one hundred twenty-five million, four hundred thirty-three thousand, five hundred eight".

Divisors: 1 2 4 11 17 22 34 44 68 137 187 274 349 367 374 548 698 734 748 1396 1468 1507 2329 3014 3839 4037 4658 5933 6028 6239 7678 8074 9316 11866 12478 15356 16148 23732 24956 25619 47813 50279 51238 65263 68629 95626 100558 102476 128083 130526 137258 191252 201116 256166 261052 274516 512332 525943 553069 812821 854743 1051886 1106138 1408913 1625642 1709486 2103772 2177411 2212276 2817826 3251284 3418972 4354822 5635652 8709644 8941031 9402173 17547371 17882062 18804346 23951521 35094742 35764124 37608692 47903042 70189484 95806084 193021081 298305307 386042162 596610614 772084324 1193221228 3281358377 6562716754 13125433508