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489008061 = 3254334229
BaseRepresentation
bin11101001001011…
…010101110111101
31021002011011221200
4131021122232331
52000141224221
6120305050113
715055333323
oct3511325675
91232134850
10489008061
11231039aa3
12117926939
137a406ba9
1448d33d13
152cde6426
hex1d25abbd

489008061 has 6 divisors (see below), whose sum is σ = 706344990. Its totient is φ = 326005368.

The previous prime is 489008059. The next prime is 489008071. The reversal of 489008061 is 160800984.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 432848025 + 56160036 = 20805^2 + 7494^2 .

It is not a de Polignac number, because 489008061 - 21 = 489008059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489008071) 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, 27167106 + ... + 27167123.

It is an arithmetic number, because the mean of its divisors is an integer number (117724165).

Almost surely, 2489008061 is an apocalyptic number.

It is an amenable number.

489008061 is a deficient number, since it is larger than the sum of its proper divisors (217336929).

489008061 is a wasteful number, since it uses less digits than its factorization.

489008061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54334235 (or 54334232 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 489008061 is about 22113.5266522552. The cubic root of 489008061 is about 787.8411715971.

The spelling of 489008061 in words is "four hundred eighty-nine million, eight thousand, sixty-one".

Divisors: 1 3 9 54334229 163002687 489008061