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303242425 = 5212129697
BaseRepresentation
bin10010000100110…
…001110010111001
3210010121022101221
4102010301302321
51110112224200
650031312041
710341342463
oct2204616271
9703538357
10303242425
11146199582
128567b621
134aa948b5
142c3b9133
151b94e91a
hex12131cb9

303242425 has 6 divisors (see below), whose sum is σ = 376020638. Its totient is φ = 242593920.

The previous prime is 303242411. The next prime is 303242461. The reversal of 303242425 is 524242303.

It can be written as a sum of positive squares in 3 ways, for example, as 74718736 + 228523689 = 8644^2 + 15117^2 .

It is not a de Polignac number, because 303242425 - 225 = 269687993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 12129697 = 303242425 / (3 + 0 + 3 + 2 + 4 + 2 + 4 + 2 + 5).

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 303242425.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 6064824 + ... + 6064873.

Almost surely, 2303242425 is an apocalyptic number.

It is an amenable number.

303242425 is a deficient number, since it is larger than the sum of its proper divisors (72778213).

303242425 is a wasteful number, since it uses less digits than its factorization.

303242425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12129707 (or 12129702 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 303242425 is about 17413.8572694277. The cubic root of 303242425 is about 671.8360754086.

Adding to 303242425 its reverse (524242303), we get a palindrome (827484728).

The spelling of 303242425 in words is "three hundred three million, two hundred forty-two thousand, four hundred twenty-five".

Divisors: 1 5 25 12129697 60648485 303242425