Base | Representation |
---|---|
bin | 11101001100011… |
… | …001001000101110 |
3 | 1021010121210202110 |
4 | 131030121020232 |
5 | 2000341203300 |
6 | 120333504450 |
7 | 15065062131 |
oct | 3514311056 |
9 | 1233553673 |
10 | 489787950 |
11 | 231521a33 |
12 | 118042126 |
13 | 7a61ab72 |
14 | 49098218 |
15 | 2ceec550 |
hex | 1d31922e |
489787950 has 48 divisors (see below), whose sum is σ = 1217640816. Its totient is φ = 130291200.
The previous prime is 489787943. The next prime is 489787951. The reversal of 489787950 is 59787984.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (489787951) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61180 + ... + 68720.
It is an arithmetic number, because the mean of its divisors is an integer number (25367517).
Almost surely, 2489787950 is an apocalyptic number.
489787950 is an abundant number, since it is smaller than the sum of its proper divisors (727852866).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
489787950 is a wasteful number, since it uses less digits than its factorization.
489787950 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7989 (or 7984 counting only the distinct ones).
The product of its (nonzero) digits is 5080320, while the sum is 57.
The square root of 489787950 is about 22131.1533816021. The cubic root of 489787950 is about 788.2597756812.
The spelling of 489787950 in words is "four hundred eighty-nine million, seven hundred eighty-seven thousand, nine hundred fifty".
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