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489292490 = 2548929249
BaseRepresentation
bin11101001010100…
…000001011001010
31021002200122010002
4131022200023022
52000224324430
6120315123002
715060626501
oct3512401312
91232618102
10489292490
11231213765
12117a43462
137a4a64ab
1448da9838
152ce50845
hex1d2a02ca

489292490 has 8 divisors (see below), whose sum is σ = 880726500. Its totient is φ = 195716992.

The previous prime is 489292481. The next prime is 489292493. The reversal of 489292490 is 94292984.

It can be written as a sum of positive squares in 2 ways, for example, as 457831609 + 31460881 = 21397^2 + 5609^2 .

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

It is not an unprimeable number, because it can be changed into a prime (489292493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24464615 + ... + 24464634.

Almost surely, 2489292490 is an apocalyptic number.

489292490 is a deficient number, since it is larger than the sum of its proper divisors (391434010).

489292490 is a wasteful number, since it uses less digits than its factorization.

489292490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48929256.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 489292490 is about 22119.9568263593. The cubic root of 489292490 is about 787.9938899008.

The spelling of 489292490 in words is "four hundred eighty-nine million, two hundred ninety-two thousand, four hundred ninety".

Divisors: 1 2 5 10 48929249 97858498 244646245 489292490