Base | Representation |
---|---|
bin | 11101001100010… |
… | …101011100000000 |
3 | 1021010121000222100 |
4 | 131030111130000 |
5 | 2000340212200 |
6 | 120333310400 |
7 | 15065000016 |
oct | 3514253400 |
9 | 1233530870 |
10 | 489772800 |
11 | 231511610 |
12 | 118035400 |
13 | 7a613cba |
14 | 490928b6 |
15 | 2cee7d00 |
hex | 1d315700 |
489772800 has 324 divisors, whose sum is σ = 1912705704. Its totient is φ = 118579200.
The previous prime is 489772769. The next prime is 489772807. The reversal of 489772800 is 8277984.
489772800 = 463 + 473 + ... + 2103.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (489772807) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 633214 + ... + 633986.
Almost surely, 2489772800 is an apocalyptic number.
489772800 is a gapful number since it is divisible by the number (40) 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 489772800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956352852).
489772800 is an abundant number, since it is smaller than the sum of its proper divisors (1422932904).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
489772800 is a wasteful number, since it uses less digits than its factorization.
489772800 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 816 (or 794 counting only the distinct ones).
The product of its (nonzero) digits is 225792, while the sum is 45.
The square root of 489772800 is about 22130.8111012678. The cubic root of 489772800 is about 788.2516481784.
The spelling of 489772800 in words is "four hundred eighty-nine million, seven hundred seventy-two thousand, eight hundred".
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