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13481125890 = 2352915495547
BaseRepresentation
bin11001000111000100…
…11010100000000010
31021210112010011002220
430203202122200002
5210102132012030
610105415151510
7655034452011
oct144342324002
937715104086
1013481125890
115798820461
122742975596
13136ac78c8b
1491c60aa78
1553d7dca10
hex32389a802

13481125890 has 32 divisors (see below), whose sum is σ = 33470383680. Its totient is φ = 3471002304.

The previous prime is 13481125873. The next prime is 13481125913. The reversal of 13481125890 is 9852118431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7746904 + ... + 7748643.

It is an arithmetic number, because the mean of its divisors is an integer number (1045949490).

Almost surely, 213481125890 is an apocalyptic number.

13481125890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13481125890 is an abundant number, since it is smaller than the sum of its proper divisors (19989257790).

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

13481125890 is a wasteful number, since it uses less digits than its factorization.

13481125890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15495586.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 13481125890 in words is "thirteen billion, four hundred eighty-one million, one hundred twenty-five thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 29 30 58 87 145 174 290 435 870 15495547 30991094 46486641 77477735 92973282 154955470 232433205 449370863 464866410 898741726 1348112589 2246854315 2696225178 4493708630 6740562945 13481125890