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489121746048 = 273313191035563
BaseRepresentation
bin1110001111000011110…
…11011000110010000000
31201202111201212011012000
413013201323120302000
531003210131333143
61012411024304000
750223615146265
oct7074173306200
91652451764160
10489121746048
11179487524281
127a965a72000
133717c50c010
14199605a526c
15cacaae1bd3
hex71e1ed8c80

489121746048 has 512 divisors, whose sum is σ = 1652641536000. Its totient is φ = 141168365568.

The previous prime is 489121745993. The next prime is 489121746083. The reversal of 489121746048 is 840647121984.

489121746048 is a `hidden beast` number, since 4 + 8 + 9 + 1 + 21 + 7 + 4 + 604 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 489121745985 and 489121746003.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 87921315 + ... + 87926877.

It is an arithmetic number, because the mean of its divisors is an integer number (3227815500).

Almost surely, 2489121746048 is an apocalyptic number.

489121746048 is a gapful number since it is divisible by the number (48) 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 489121746048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (826320768000).

489121746048 is an abundant number, since it is smaller than the sum of its proper divisors (1163519789952).

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

489121746048 is a wasteful number, since it uses less digits than its factorization.

489121746048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5721 (or 5703 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 489121746048 in words is "four hundred eighty-nine billion, one hundred twenty-one million, seven hundred forty-six thousand, forty-eight".