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230135918 = 2166369193
BaseRepresentation
bin11011011011110…
…01100001101110
3121001001010010112
431231321201232
5432403322133
634500340022
75463060125
oct1555714156
9531033115
10230135918
111089a6581
12650a4612
13388a90cc
14227c8abc
151530d648
hexdb7986e

230135918 has 8 divisors (see below), whose sum is σ = 345416448. Its totient is φ = 114997104.

The previous prime is 230135903. The next prime is 230135963. The reversal of 230135918 is 819531032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 31271 + ... + 37922.

It is an arithmetic number, because the mean of its divisors is an integer number (43177056).

Almost surely, 2230135918 is an apocalyptic number.

230135918 is a deficient number, since it is larger than the sum of its proper divisors (115280530).

230135918 is a wasteful number, since it uses less digits than its factorization.

230135918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70858.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 230135918 is about 15170.2313100361. The cubic root of 230135918 is about 612.8132335371.

The spelling of 230135918 in words is "two hundred thirty million, one hundred thirty-five thousand, nine hundred eighteen".

Divisors: 1 2 1663 3326 69193 138386 115067959 230135918