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15159401068 = 227277343883
BaseRepresentation
bin11100001111001001…
…00001101001101100
31110010111002100211211
432013210201221230
5222021301313233
610544130324204
71044443532400
oct160744415154
943114070754
1015159401068
11647a0a5439
122b30a29664
13157788a006
14a3b479100
155dacee5cd
hex387921a6c

15159401068 has 18 divisors (see below), whose sum is σ = 30860209716. Its totient is φ = 6496886088.

The previous prime is 15159401063. The next prime is 15159401077. The reversal of 15159401068 is 86010495151.

It is a self number, because there is not a number n which added to its sum of digits gives 15159401068.

It is not an unprimeable number, because it can be changed into a prime (15159401063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38671746 + ... + 38672137.

Almost surely, 215159401068 is an apocalyptic number.

It is an amenable number.

15159401068 is an abundant number, since it is smaller than the sum of its proper divisors (15700808648).

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

15159401068 is a wasteful number, since it uses less digits than its factorization.

15159401068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77343901 (or 77343892 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 40.

The spelling of 15159401068 in words is "fifteen billion, one hundred fifty-nine million, four hundred one thousand, sixty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 77343883 154687766 309375532 541407181 1082814362 2165628724 3789850267 7579700534 15159401068