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489005620 = 22524450281
BaseRepresentation
bin11101001001011…
…010001000110100
31021002011001121021
4131021122020310
52000141134440
6120305030524
715055323235
oct3511321064
91232131537
10489005620
11231038184
12117925444
137a405a4c
1448d3308c
152cde584a
hex1d25a234

489005620 has 12 divisors (see below), whose sum is σ = 1026911844. Its totient is φ = 195602240.

The previous prime is 489005617. The next prime is 489005623. The reversal of 489005620 is 26500984.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (489005617) and next prime (489005623).

It can be written as a sum of positive squares in 2 ways, for example, as 229280164 + 259725456 = 15142^2 + 16116^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489005623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12225121 + ... + 12225160.

It is an arithmetic number, because the mean of its divisors is an integer number (85575987).

Almost surely, 2489005620 is an apocalyptic number.

It is an amenable number.

489005620 is an abundant number, since it is smaller than the sum of its proper divisors (537906224).

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

489005620 is a wasteful number, since it uses less digits than its factorization.

489005620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24450290 (or 24450288 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 489005620 is about 22113.4714597234. The cubic root of 489005620 is about 787.8398606961.

The spelling of 489005620 in words is "four hundred eighty-nine million, five thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 24450281 48900562 97801124 122251405 244502810 489005620