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489913690254912 = 26327111719612112657
BaseRepresentation
bin110111101100100101110101…
…1011110100110111001000000
32101020122021212102100001112200
41233121023223132212321000
51003203221214201124122
64453543124155153200
7205123044644622360
oct15731135336467100
92336567772301480
10489913690254912
11132113258141910
1246b4467b745800
13180498801072b1
1488d9d405949a0
153b98ba55bc5ac
hex1bd92eb7a6e40

489913690254912 has 2688 divisors, whose sum is σ = 1993440760197120. Its totient is φ = 111030829056000.

The previous prime is 489913690254889. The next prime is 489913690254941. The reversal of 489913690254912 is 219452096319984.

489913690254912 is a `hidden beast` number, since 4 + 8 + 9 + 9 + 1 + 3 + 69 + 0 + 2 + 549 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 184386031888 + ... + 184386034544.

Almost surely, 2489913690254912 is an apocalyptic number.

489913690254912 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489913690254912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (996720380098560).

489913690254912 is an abundant number, since it is smaller than the sum of its proper divisors (1503527069942208).

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

489913690254912 is a wasteful number, since it uses less digits than its factorization.

489913690254912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001 (or 2988 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 72.

The spelling of 489913690254912 in words is "four hundred eighty-nine trillion, nine hundred thirteen billion, six hundred ninety million, two hundred fifty-four thousand, nine hundred twelve".