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230135511 = 3178354367
BaseRepresentation
bin11011011011110…
…01011011010111
3121001001002120110
431231321123113
5432403314021
634500334103
75463056004
oct1555713327
9531032513
10230135511
111089a6241
12650a4333
13388a8b78
14227c88ab
151530d476
hexdb796d7

230135511 has 16 divisors (see below), whose sum is σ = 328817664. Its totient is φ = 142656384.

The previous prime is 230135509. The next prime is 230135513. The reversal of 230135511 is 115531032.

It is an interprime number because it is at equal distance from previous prime (230135509) and next prime (230135513).

It is not a de Polignac number, because 230135511 - 21 = 230135509 is a prime.

It is a super-2 number, since 2×2301355112 = 105924706846462242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230135513) 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 15 ways as a sum of consecutive naturals, for example, 22951 + ... + 31416.

It is an arithmetic number, because the mean of its divisors is an integer number (20551104).

Almost surely, 2230135511 is an apocalyptic number.

230135511 is a deficient number, since it is larger than the sum of its proper divisors (98682153).

230135511 is a wasteful number, since it uses less digits than its factorization.

230135511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54470.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 230135511 is about 15170.2178956006. The cubic root of 230135511 is about 612.8128722794.

Adding to 230135511 its reverse (115531032), we get a palindrome (345666543).

The spelling of 230135511 in words is "two hundred thirty million, one hundred thirty-five thousand, five hundred eleven".

Divisors: 1 3 17 51 83 249 1411 4233 54367 163101 924239 2772717 4512461 13537383 76711837 230135511