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230087133 = 3225565237
BaseRepresentation
bin11011011011011…
…01100111011101
3121000221122012200
431231231213131
5432400242013
634455322113
75462464653
oct1555554735
9530848180
10230087133
11108972961
1265080339
133888cb43
14227b4dd3
15152ede73
hexdb6d9dd

230087133 has 6 divisors (see below), whose sum is σ = 332348094. Its totient is φ = 153391416.

The previous prime is 230087071. The next prime is 230087149. The reversal of 230087133 is 331780032.

It can be written as a sum of positive squares in only one way, i.e., 199317924 + 30769209 = 14118^2 + 5547^2 .

It is not a de Polignac number, because 230087133 - 26 = 230087069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 230087097 and 230087106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230087233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12782610 + ... + 12782627.

It is an arithmetic number, because the mean of its divisors is an integer number (55391349).

Almost surely, 2230087133 is an apocalyptic number.

It is an amenable number.

230087133 is a deficient number, since it is larger than the sum of its proper divisors (102260961).

230087133 is a wasteful number, since it uses less digits than its factorization.

230087133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25565243 (or 25565240 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 230087133 is about 15168.6233060222. The cubic root of 230087133 is about 612.7699283944.

The spelling of 230087133 in words is "two hundred thirty million, eighty-seven thousand, one hundred thirty-three".

Divisors: 1 3 9 25565237 76695711 230087133