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489130491 = 33710741183
BaseRepresentation
bin11101001001111…
…000100111111011
31021002101101220010
4131021320213323
52000204133431
6120311433003
715056353263
oct3511704773
91232341803
10489130491
11231112a83
12117985763
137a44a835
1448d667a3
152ce1c846
hex1d2789fb

489130491 has 16 divisors (see below), whose sum is σ = 676076544. Its totient is φ = 314301024.

The previous prime is 489130487. The next prime is 489130507. The reversal of 489130491 is 194031984.

It is not a de Polignac number, because 489130491 - 22 = 489130487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489137491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8715 + ... + 32468.

It is an arithmetic number, because the mean of its divisors is an integer number (42254784).

Almost surely, 2489130491 is an apocalyptic number.

489130491 is a deficient number, since it is larger than the sum of its proper divisors (186946053).

489130491 is a wasteful number, since it uses less digits than its factorization.

489130491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41330.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 489130491 is about 22116.2946941842. The cubic root of 489130491 is about 787.9069151256.

The spelling of 489130491 in words is "four hundred eighty-nine million, one hundred thirty thousand, four hundred ninety-one".

Divisors: 1 3 37 107 111 321 3959 11877 41183 123549 1523771 4406581 4571313 13219743 163043497 489130491