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303146125 = 5317142657
BaseRepresentation
bin10010000100011…
…010010010001101
3210010102102022021
4102010122102031
51110101134000
650025250141
710340461642
oct2204322215
9703372267
10303146125
11146133197
1285633951
134aa5cb09
142c391dc9
151b93111a
hex1211a48d

303146125 has 16 divisors (see below), whose sum is σ = 400583664. Its totient is φ = 228249600.

The previous prime is 303146093. The next prime is 303146153. The reversal of 303146125 is 521641303.

It can be written as a sum of positive squares in 8 ways, for example, as 151437636 + 151708489 = 12306^2 + 12317^2 .

It is not a de Polignac number, because 303146125 - 25 = 303146093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 303146125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69204 + ... + 73453.

It is an arithmetic number, because the mean of its divisors is an integer number (25036479).

Almost surely, 2303146125 is an apocalyptic number.

It is an amenable number.

303146125 is a deficient number, since it is larger than the sum of its proper divisors (97437539).

303146125 is a wasteful number, since it uses less digits than its factorization.

303146125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142689 (or 142679 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 303146125 is about 17411.0920105547. The cubic root of 303146125 is about 671.7649500662.

Adding to 303146125 its reverse (521641303), we get a palindrome (824787428).

The spelling of 303146125 in words is "three hundred three million, one hundred forty-six thousand, one hundred twenty-five".

Divisors: 1 5 17 25 85 125 425 2125 142657 713285 2425169 3566425 12125845 17832125 60629225 303146125