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389200225 = 5237420757
BaseRepresentation
bin10111001100101…
…011100101100001
31000010100102100011
4113030223211201
51244113401400
6102341524521
712434101351
oct2714534541
91003312304
10389200225
1118a769987
12aa413741
136282c9bb
1439992b61
152427d8ba
hex1732b961

389200225 has 12 divisors (see below), whose sum is σ = 495652924. Its totient is φ = 302944320.

The previous prime is 389200183. The next prime is 389200241. The reversal of 389200225 is 522002983.

It can be written as a sum of positive squares in 6 ways, for example, as 29680704 + 359519521 = 5448^2 + 18961^2 .

It is not a de Polignac number, because 389200225 - 225 = 355645793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209454 + ... + 211303.

Almost surely, 2389200225 is an apocalyptic number.

It is an amenable number.

389200225 is a deficient number, since it is larger than the sum of its proper divisors (106452699).

389200225 is a wasteful number, since it uses less digits than its factorization.

389200225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420804 (or 420799 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 389200225 is about 19728.1581755622. The cubic root of 389200225 is about 730.1145907559.

The spelling of 389200225 in words is "three hundred eighty-nine million, two hundred thousand, two hundred twenty-five".

Divisors: 1 5 25 37 185 925 420757 2103785 10518925 15568009 77840045 389200225