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489020959 = 7571122347
BaseRepresentation
bin11101001001011…
…101111000011111
31021002011211122101
4131021131320133
52000142132314
6120305225531
715055416040
oct3511357037
91232154571
10489020959
11231048759
121179322a7
137a40ca1b
1448d388c7
152cdea174
hex1d25de1f

489020959 has 8 divisors (see below), whose sum is σ = 559864448. Its totient is φ = 418423320.

The previous prime is 489020953. The next prime is 489020989. The reversal of 489020959 is 959020984.

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

It is not a de Polignac number, because 489020959 - 23 = 489020951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489020951) 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, 57177 + ... + 65170.

It is an arithmetic number, because the mean of its divisors is an integer number (69983056).

Almost surely, 2489020959 is an apocalyptic number.

489020959 is a deficient number, since it is larger than the sum of its proper divisors (70843489).

489020959 is a wasteful number, since it uses less digits than its factorization.

489020959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122925.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 489020959 is about 22113.8182817893. The cubic root of 489020959 is about 787.8480981947.

The spelling of 489020959 in words is "four hundred eighty-nine million, twenty thousand, nine hundred fifty-nine".

Divisors: 1 7 571 3997 122347 856429 69860137 489020959