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507898089 = 3256433121
BaseRepresentation
bin11110010001011…
…110100011101001
31022101200220012100
4132101132203221
52020010214324
6122222004013
715405030306
oct3621364351
91271626170
10507898089
11240771396
12122116609
13812bc01a
144b6500ad
152e8c84c9
hex1e45e8e9

507898089 has 6 divisors (see below), whose sum is σ = 733630586. Its totient is φ = 338598720.

The previous prime is 507898081. The next prime is 507898091. The reversal of 507898089 is 980898705.

It can be written as a sum of positive squares in only one way, i.e., 498182400 + 9715689 = 22320^2 + 3117^2 .

It is not a de Polignac number, because 507898089 - 23 = 507898081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507898081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28216552 + ... + 28216569.

Almost surely, 2507898089 is an apocalyptic number.

It is an amenable number.

507898089 is a deficient number, since it is larger than the sum of its proper divisors (225732497).

507898089 is a wasteful number, since it uses less digits than its factorization.

507898089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56433127 (or 56433124 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The square root of 507898089 is about 22536.5944410419. The cubic root of 507898089 is about 797.8578571707.

The spelling of 507898089 in words is "five hundred seven million, eight hundred ninety-eight thousand, eighty-nine".

Divisors: 1 3 9 56433121 169299363 507898089