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489046225408 = 2913172972621
BaseRepresentation
bin1110001110111010110…
…11010011001000000000
31201202022110202022100021
413013131123103020000
531003031313203113
61012355325503224
750222010220426
oct7073533231000
91652273668307
10489046225408
11179448932524
127a944711b14
1337169989750
1419954547116
15cac417548d
hex71dd6d3200

489046225408 has 240 divisors, whose sum is σ = 1129798016424. Its totient is φ = 210166087680.

The previous prime is 489046225319. The next prime is 489046225411. The reversal of 489046225408 is 804522640984.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 176037306624 + 313008918784 = 419568^2 + 559472^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186586338 + ... + 186588958.

Almost surely, 2489046225408 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 489046225408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564899008212).

489046225408 is an abundant number, since it is smaller than the sum of its proper divisors (640751791016).

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

489046225408 is a wasteful number, since it uses less digits than its factorization.

489046225408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783 (or 2750 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 489046225408 in words is "four hundred eighty-nine billion, forty-six million, two hundred twenty-five thousand, four hundred eight".