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115380873 = 3283154459
BaseRepresentation
bin1101110000010…
…01001010001001
322001002221210200
412320021022021
5214014141443
615241002413
72600502246
oct670111211
9261087720
10115380873
115a1473a3
1232783409
131ab9a60a
14114765cd
15a1e1dd3
hex6e09289

115380873 has 12 divisors (see below), whose sum is σ = 168670320. Its totient is φ = 75993336.

The previous prime is 115380833. The next prime is 115380899. The reversal of 115380873 is 378083511.

It is not a de Polignac number, because 115380873 - 29 = 115380361 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115380833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76483 + ... + 77976.

It is an arithmetic number, because the mean of its divisors is an integer number (14055860).

Almost surely, 2115380873 is an apocalyptic number.

It is an amenable number.

115380873 is a deficient number, since it is larger than the sum of its proper divisors (53289447).

115380873 is a wasteful number, since it uses less digits than its factorization.

115380873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154548 (or 154545 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 115380873 is about 10741.5489106553. The cubic root of 115380873 is about 486.8306806811.

The spelling of 115380873 in words is "one hundred fifteen million, three hundred eighty thousand, eight hundred seventy-three".

Divisors: 1 3 9 83 249 747 154459 463377 1390131 12820097 38460291 115380873