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230016133 = 1137332777
BaseRepresentation
bin11011011010111…
…00010010000101
3121000211000211001
431231130102011
5432341004013
634454013301
75462050654
oct1555342205
9530730731
10230016133
11108924586
1265047231
1338866729
142279719b
15152d7ddd
hexdb5c485

230016133 has 8 divisors (see below), whose sum is σ = 232451928. Its totient is φ = 227587584.

The previous prime is 230016121. The next prime is 230016173. The reversal of 230016133 is 331610032.

230016133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8661249 + 221354884 = 2943^2 + 14878^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230016133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230016133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230016113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81441 + ... + 84217.

It is an arithmetic number, because the mean of its divisors is an integer number (29056491).

Almost surely, 2230016133 is an apocalyptic number.

It is an amenable number.

230016133 is a deficient number, since it is larger than the sum of its proper divisors (2435795).

230016133 is a wasteful number, since it uses less digits than its factorization.

230016133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 230016133 is about 15166.2827680352. The cubic root of 230016133 is about 612.7068926505.

Adding to 230016133 its reverse (331610032), we get a palindrome (561626165).

It can be divided in two parts, 23001613 and 3, that added together give a square (23001616 = 47962).

The spelling of 230016133 in words is "two hundred thirty million, sixteen thousand, one hundred thirty-three".

Divisors: 1 113 733 2777 82829 313801 2035541 230016133