Base | Representation |
---|---|
bin | 1000011111111100… |
… | …1011101010011100 |
3 | 12220000000112210200 |
4 | 2013333023222130 |
5 | 14133030041004 |
6 | 1014220103500 |
7 | 110352214416 |
oct | 20777135234 |
9 | 5800015720 |
10 | 2281487004 |
11 | a70926a55 |
12 | 538094b90 |
13 | 2a4892814 |
14 | 17900d9b6 |
15 | d5466239 |
hex | 87fcba9c |
2281487004 has 36 divisors (see below), whose sum is σ = 5768872200. Its totient is φ = 760260960.
The previous prime is 2281486979. The next prime is 2281487009. The reversal of 2281487004 is 4007841822.
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a self number, because there is not a number n which added to its sum of digits gives 2281487004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2281487009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139834 + ... + 155294.
It is an arithmetic number, because the mean of its divisors is an integer number (160246450).
Almost surely, 22281487004 is an apocalyptic number.
It is an amenable number.
2281487004 is an abundant number, since it is smaller than the sum of its proper divisors (3487385196).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2281487004 is a wasteful number, since it uses less digits than its factorization.
2281487004 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19570 (or 19565 counting only the distinct ones).
The product of its (nonzero) digits is 28672, while the sum is 36.
The square root of 2281487004 is about 47764.9139431864. The cubic root of 2281487004 is about 1316.4549436700.
The spelling of 2281487004 in words is "two billion, two hundred eighty-one million, four hundred eighty-seven thousand, four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •