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507985489 = 11291592431
BaseRepresentation
bin11110010001110…
…011111001010001
31022101212100002101
4132101303321101
52020021013424
6122223520401
715405543154
oct3621637121
91271770071
10507985489
11240821020
12122159101
138131ca3b
144b673c9b
152e8e4344
hex1e473e51

507985489 has 8 divisors (see below), whose sum is σ = 573275520. Its totient is φ = 445880400.

The previous prime is 507985487. The next prime is 507985519. The reversal of 507985489 is 984589705.

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

It is a cyclic number.

It is not a de Polignac number, because 507985489 - 21 = 507985487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507985487) 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, 795897 + ... + 796534.

It is an arithmetic number, because the mean of its divisors is an integer number (71659440).

Almost surely, 2507985489 is an apocalyptic number.

It is an amenable number.

507985489 is a deficient number, since it is larger than the sum of its proper divisors (65290031).

507985489 is a wasteful number, since it uses less digits than its factorization.

507985489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592471.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The square root of 507985489 is about 22538.5334261127. The cubic root of 507985489 is about 797.9036201421.

The spelling of 507985489 in words is "five hundred seven million, nine hundred eighty-five thousand, four hundred eighty-nine".

Divisors: 1 11 29 319 1592431 17516741 46180499 507985489