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303230121 = 3229571773
BaseRepresentation
bin10010000100101…
…110110010101001
3210010120200112020
4102010232302221
51110111330441
650031135053
710341261555
oct2204566251
9703520466
10303230121
11146190307
1285674489
134aa8c10c
142c3b4865
151b94ae66
hex1212eca9

303230121 has 16 divisors (see below), whose sum is σ = 407309760. Its totient is φ = 200658240.

The previous prime is 303230113. The next prime is 303230129. The reversal of 303230121 is 121032303.

It is an interprime number because it is at equal distance from previous prime (303230113) and next prime (303230129).

It is not a de Polignac number, because 303230121 - 23 = 303230113 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 303230121.

It is not an unprimeable number, because it can be changed into a prime (303230129) 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, 391891 + ... + 392663.

It is an arithmetic number, because the mean of its divisors is an integer number (25456860).

Almost surely, 2303230121 is an apocalyptic number.

It is an amenable number.

303230121 is a deficient number, since it is larger than the sum of its proper divisors (104079639).

303230121 is a wasteful number, since it uses less digits than its factorization.

303230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 303230121 is about 17413.5039839775. The cubic root of 303230121 is about 671.8269887481.

Adding to 303230121 its reverse (121032303), we get a palindrome (424262424).

It can be divided in two parts, 3032 and 30121, that added together give a triangular number (33153 = T257).

The spelling of 303230121 in words is "three hundred three million, two hundred thirty thousand, one hundred twenty-one".

Divisors: 1 3 229 571 687 773 1713 2319 130759 177017 392277 441383 531051 1324149 101076707 303230121