Base | Representation |
---|---|
bin | 1000011111111100… |
… | …0111011000110010 |
3 | 12212222222122210000 |
4 | 2013333013120302 |
5 | 14133024010430 |
6 | 1014215450430 |
7 | 110352112356 |
oct | 20777073062 |
9 | 5788878700 |
10 | 2281469490 |
11 | a70914883 |
12 | 538086a16 |
13 | 2a4887861 |
14 | 179007466 |
15 | d5460e60 |
hex | 87fc7632 |
2281469490 has 160 divisors (see below), whose sum is σ = 6482843136. Its totient is φ = 574801920.
The previous prime is 2281469473. The next prime is 2281469501. The reversal of 2281469490 is 949641822.
2281469490 is a `hidden beast` number, since 22 + 81 + 4 + 69 + 490 = 666.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1078674 + ... + 1080786.
Almost surely, 22281469490 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2281469490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3241421568).
2281469490 is an abundant number, since it is smaller than the sum of its proper divisors (4201373646).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2281469490 is a wasteful number, since it uses less digits than its factorization.
2281469490 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2206 (or 2197 counting only the distinct ones).
The product of its (nonzero) digits is 248832, while the sum is 45.
The square root of 2281469490 is about 47764.7306074262. The cubic root of 2281469490 is about 1316.4515750408.
The spelling of 2281469490 in words is "two billion, two hundred eighty-one million, four hundred sixty-nine thousand, four hundred ninety".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •