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13109179485 = 3517194165993
BaseRepresentation
bin11000011010101111…
…00011010001011101
31020211121020022120010
430031113203101131
5203321422220420
610004451113433
7642600121113
oct141527432135
936747208503
1013109179485
115617876636
12265a2a2879
13130bbaa74c
148c5069ab3
1551ad1b4e0
hex30d5e345d

13109179485 has 64 divisors (see below), whose sum is σ = 23947902720. Its totient is φ = 6081822720.

The previous prime is 13109179483. The next prime is 13109179493. The reversal of 13109179485 is 58497190131.

It is not a de Polignac number, because 13109179485 - 21 = 13109179483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13109179481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 165649 + ... + 231641.

It is an arithmetic number, because the mean of its divisors is an integer number (374185980).

Almost surely, 213109179485 is an apocalyptic number.

13109179485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13109179485 is a deficient number, since it is larger than the sum of its proper divisors (10838723235).

13109179485 is a wasteful number, since it uses less digits than its factorization.

13109179485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66078.

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 13109179485 in words is "thirteen billion, one hundred nine million, one hundred seventy-nine thousand, four hundred eighty-five".

Divisors: 1 3 5 15 17 19 41 51 57 85 95 123 205 255 285 323 615 697 779 969 1615 2091 2337 3485 3895 4845 10455 11685 13243 39729 65993 66215 197979 198645 329965 989895 1121881 1253867 2705713 3365643 3761601 5609405 6269335 8117139 13528565 16828215 18808005 21315739 40585695 45997121 51408547 63947217 106578695 137991363 154225641 229985605 257042735 319736085 689956815 771128205 873945299 2621835897 4369726495 13109179485