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303230013 = 3531907107
BaseRepresentation
bin10010000100101…
…110110000111101
3210010120200101020
4102010232300331
51110111330023
650031134353
710341261342
oct2204566075
9703520336
10303230013
11146190219
12856743b9
134aa8c058
142c3b47c9
151b94ade3
hex1212ec3d

303230013 has 8 divisors (see below), whose sum is σ = 411935328. Its totient is φ = 198339024.

The previous prime is 303229991. The next prime is 303230027. The reversal of 303230013 is 310032303.

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

It is not a de Polignac number, because 303230013 - 212 = 303225917 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 303229974 and 303230001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303230113) 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, 953395 + ... + 953712.

It is an arithmetic number, because the mean of its divisors is an integer number (51491916).

Almost surely, 2303230013 is an apocalyptic number.

It is an amenable number.

303230013 is a deficient number, since it is larger than the sum of its proper divisors (108705315).

303230013 is a wasteful number, since it uses less digits than its factorization.

303230013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907163.

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 303230013 is about 17413.5008829356. The cubic root of 303230013 is about 671.8269089876.

Adding to 303230013 its reverse (310032303), we get a palindrome (613262316).

The spelling of 303230013 in words is "three hundred three million, two hundred thirty thousand, thirteen".

Divisors: 1 3 53 159 1907107 5721321 101076671 303230013