Base | Representation |
---|---|
bin | 1001010001100010… |
… | …1000110110011100 |
3 | 20102111102000210220 |
4 | 2110120220312130 |
5 | 20044302033443 |
6 | 1051010201340 |
7 | 115456200600 |
oct | 22430506634 |
9 | 6374360726 |
10 | 2489486748 |
11 | 1068283271 |
12 | 595883250 |
13 | 3089bb0a8 |
14 | 1988b5500 |
15 | e8850a83 |
hex | 94628d9c |
2489486748 has 72 divisors (see below), whose sum is σ = 6778122624. Its totient is φ = 709077600.
The previous prime is 2489486743. The next prime is 2489486767. The reversal of 2489486748 is 8476849842.
It is a junction number, because it is equal to n+sod(n) for n = 2489486691 and 2489486700.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2489486743) 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, 188233 + ... + 201023.
It is an arithmetic number, because the mean of its divisors is an integer number (94140592).
Almost surely, 22489486748 is an apocalyptic number.
2489486748 is a gapful number since it is divisible by the number (28) 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 2489486748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3389061312).
2489486748 is an abundant number, since it is smaller than the sum of its proper divisors (4288635876).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2489486748 is a wasteful number, since it uses less digits than its factorization.
2489486748 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13143 (or 13134 counting only the distinct ones).
The product of its digits is 24772608, while the sum is 60.
The square root of 2489486748 is about 49894.7567185170. The cubic root of 2489486748 is about 1355.3036447722.
The spelling of 2489486748 in words is "two billion, four hundred eighty-nine million, four hundred eighty-six thousand, seven hundred forty-eight".
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