Base | Representation |
---|---|
bin | 1000000000010001… |
… | …1110101100001010 |
3 | 12112202002010120100 |
4 | 2000010132230022 |
5 | 13400024023210 |
6 | 553113110230 |
7 | 104150201556 |
oct | 20004365412 |
9 | 5482063510 |
10 | 2148657930 |
11 | a02952561 |
12 | 4bb6b8376 |
13 | 2831c6433 |
14 | 165514866 |
15 | c89795c0 |
hex | 8011eb0a |
2148657930 has 96 divisors (see below), whose sum is σ = 5840864640. Its totient is φ = 546986880.
The previous prime is 2148657923. The next prime is 2148657947. The reversal of 2148657930 is 397568412.
2148657930 is a `hidden beast` number, since 2 + 1 + 48 + 6 + 579 + 30 = 666.
2148657930 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (45).
2148657930 is strictly pandigital in base 10.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2009436 + ... + 2010504.
It is an arithmetic number, because the mean of its divisors is an integer number (60842340).
It is a 2-persistent number, because it is pandigital, and so is 2⋅2148657930 = 4297315860, but 3⋅2148657930 = 6445973790 is not.
Almost surely, 22148657930 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2148657930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2920432320).
2148657930 is an abundant number, since it is smaller than the sum of its proper divisors (3692206710).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2148657930 is a wasteful number, since it uses less digits than its factorization.
2148657930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2076 (or 2073 counting only the distinct ones).
The product of its (nonzero) digits is 362880, while the sum is 45.
The square root of 2148657930 is about 46353.6183053707. The cubic root of 2148657930 is about 1290.3942728488.
The spelling of 2148657930 in words is "two billion, one hundred forty-eight million, six hundred fifty-seven thousand, nine hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •