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508493090 = 25721037741
BaseRepresentation
bin11110010011101…
…111110100100010
31022102211010101102
4132103233310202
52020133234330
6122242434402
715413056100
oct3623576442
91272733342
10508493090
11241038426
12122362a02
1381469ab1
144b766c70
152e994945
hex1e4efd22

508493090 has 24 divisors (see below), whose sum is σ = 1064723292. Its totient is φ = 174340320.

The previous prime is 508493087. The next prime is 508493099. The reversal of 508493090 is 90394805.

It can be written as a sum of positive squares in 2 ways, for example, as 425555641 + 82937449 = 20629^2 + 9107^2 .

It is not an unprimeable number, because it can be changed into a prime (508493099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 518381 + ... + 519360.

Almost surely, 2508493090 is an apocalyptic number.

508493090 is an abundant number, since it is smaller than the sum of its proper divisors (556230202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

508493090 is a wasteful number, since it uses less digits than its factorization.

508493090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037762 (or 1037755 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 508493090 is about 22549.7913515846. The cubic root of 508493090 is about 798.1692982344.

The spelling of 508493090 in words is "five hundred eight million, four hundred ninety-three thousand, ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 1037741 2075482 5188705 7264187 10377410 14528374 36320935 50849309 72641870 101698618 254246545 508493090