Search a number
-
+
303230154 = 231313171217
BaseRepresentation
bin10010000100101…
…110110011001010
3210010120200120110
4102010232303022
51110111331104
650031135150
710341261633
oct2204566312
9703520513
10303230154
11146190337
12856744b6
134aa8c136
142c3b488a
151b94ae89
hex1212ecca

303230154 has 32 divisors (see below), whose sum is σ = 613521216. Its totient is φ = 99906560.

The previous prime is 303230131. The next prime is 303230159. The reversal of 303230154 is 451032303.

It is a self number, because there is not a number n which added to its sum of digits gives 303230154.

It is not an unprimeable number, because it can be changed into a prime (303230159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248554 + ... + 249770.

It is an arithmetic number, because the mean of its divisors is an integer number (19172538).

Almost surely, 2303230154 is an apocalyptic number.

303230154 is an abundant number, since it is smaller than the sum of its proper divisors (310291062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

303230154 is a wasteful number, since it uses less digits than its factorization.

303230154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 303230154 is about 17413.5049315180. The cubic root of 303230154 is about 671.8270131193.

Adding to 303230154 its reverse (451032303), we get a palindrome (754262457).

The spelling of 303230154 in words is "three hundred three million, two hundred thirty thousand, one hundred fifty-four".

Divisors: 1 2 3 6 131 262 317 393 634 786 951 1217 1902 2434 3651 7302 41527 83054 124581 159427 249162 318854 385789 478281 771578 956562 1157367 2314734 50538359 101076718 151615077 303230154