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13116423468 = 2231817977577
BaseRepresentation
bin11000011011100110…
…01011110100101100
31020212002212100102210
430031303023310230
5203330301022333
610005310250420
7643015521441
oct141563136454
936762770383
1013116423468
1156209740a5
1226607b6a10
131310545a25
148c5dd39c8
1551b79ca63
hex30dccbd2c

13116423468 has 48 divisors (see below), whose sum is σ = 30816755424. Its totient is φ = 4341957120.

The previous prime is 13116423461. The next prime is 13116423473. The reversal of 13116423468 is 86432461131.

It is a happy number.

It is a super-2 number, since 2×131164234682 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13116423461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1727296 + ... + 1734872.

It is an arithmetic number, because the mean of its divisors is an integer number (642015738).

Almost surely, 213116423468 is an apocalyptic number.

It is an amenable number.

13116423468 is an abundant number, since it is smaller than the sum of its proper divisors (17700331956).

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

13116423468 is a wasteful number, since it uses less digits than its factorization.

13116423468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8562 (or 8560 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

Adding to 13116423468 its reverse (86432461131), we get a palindrome (99548884599).

The spelling of 13116423468 in words is "thirteen billion, one hundred sixteen million, four hundred twenty-three thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 181 362 543 724 797 1086 1594 2172 2391 3188 4782 7577 9564 15154 22731 30308 45462 90924 144257 288514 432771 577028 865542 1371437 1731084 2742874 4114311 5485748 6038869 8228622 12077738 16457244 18116607 24155476 36233214 72466428 1093035289 2186070578 3279105867 4372141156 6558211734 13116423468