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800115129 = 32118081971
BaseRepresentation
bin101111101100001…
…100100110111001
32001202120001121200
4233230030212321
53114312141004
6211221124413
725553603112
oct5754144671
92052501550
10800115129
1138070a380
121a3b59709
13c99c3408
1478399209
154a39b239
hex2fb0c9b9

800115129 has 12 divisors (see below), whose sum is σ = 1260787632. Its totient is φ = 484918200.

The previous prime is 800115109. The next prime is 800115157. The reversal of 800115129 is 921511008.

It is not a de Polignac number, because 800115129 - 28 = 800114873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (800115109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4040887 + ... + 4041084.

It is an arithmetic number, because the mean of its divisors is an integer number (105065636).

Almost surely, 2800115129 is an apocalyptic number.

It is an amenable number.

800115129 is a deficient number, since it is larger than the sum of its proper divisors (460672503).

800115129 is a wasteful number, since it uses less digits than its factorization.

800115129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8081988 (or 8081985 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 800115129 is about 28286.3063866600. The cubic root of 800115129 is about 928.3622963766.

The spelling of 800115129 in words is "eight hundred million, one hundred fifteen thousand, one hundred twenty-nine".

Divisors: 1 3 9 11 33 99 8081971 24245913 72737739 88901681 266705043 800115129