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489440919552 = 2143132961433
BaseRepresentation
bin1110001111101001111…
…00111100000000000000
31201210022222102211220220
413013310330330000000
531004333333411202
61012502425303040
750234542113264
oct7076474740000
91653288384826
10489440919552
11179630704032
127aa34934a80
1337200690c90
1419990b2a0a4
15cae8b3babc
hex71f4f3c000

489440919552 has 480 divisors, whose sum is σ = 1481246652480. Its totient is φ = 142690222080.

The previous prime is 489440919533. The next prime is 489440919577. The reversal of 489440919552 is 255919044984.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1130348328 + ... + 1130348760.

It is an arithmetic number, because the mean of its divisors is an integer number (3085930526).

Almost surely, 2489440919552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489440919552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740623326240).

489440919552 is an abundant number, since it is smaller than the sum of its proper divisors (991805732928).

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

489440919552 is a wasteful number, since it uses less digits than its factorization.

489440919552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 60.

The spelling of 489440919552 in words is "four hundred eighty-nine billion, four hundred forty million, nine hundred nineteen thousand, five hundred fifty-two".