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13459171385 = 511673652421
BaseRepresentation
bin11001000100011101…
…01010100000111001
31021201222210202012002
430202032222200321
5210031021441020
610103312430345
7654350032502
oct144216524071
937658722162
1013459171385
115787395740
1227375483b5
13136656004a
14919733ba9
1553b902975
hex3223aa839

13459171385 has 16 divisors (see below), whose sum is σ = 17882258112. Its totient is φ = 9642388800.

The previous prime is 13459171381. The next prime is 13459171387. The reversal of 13459171385 is 58317195431.

It is not a de Polignac number, because 13459171385 - 22 = 13459171381 is a prime.

It is a super-2 number, since 2×134591713852 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13459171381) 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, 1822526 + ... + 1829895.

It is an arithmetic number, because the mean of its divisors is an integer number (1117641132).

Almost surely, 213459171385 is an apocalyptic number.

It is an amenable number.

13459171385 is a deficient number, since it is larger than the sum of its proper divisors (4423086727).

13459171385 is a wasteful number, since it uses less digits than its factorization.

13459171385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652504.

The product of its digits is 453600, while the sum is 47.

The spelling of 13459171385 in words is "thirteen billion, four hundred fifty-nine million, one hundred seventy-one thousand, three hundred eighty-five".

Divisors: 1 5 11 55 67 335 737 3685 3652421 18262105 40176631 200883155 244712207 1223561035 2691834277 13459171385