Base | Representation |
---|---|
bin | 11011011111101000100… |
… | …100111001100100100000 |
3 | 20200121212000120021122121 |
4 | 123133220210321210200 |
5 | 221423434003130143 |
6 | 4003550333114024 |
7 | 253334624241520 |
oct | 33375044714440 |
9 | 6617760507577 |
10 | 1889392630048 |
11 | 669317979740 |
12 | 266215928914 |
13 | 10922728b181 |
14 | 67638b65680 |
15 | 3423290d7ed |
hex | 1b7e8939920 |
1889392630048 has 192 divisors, whose sum is σ = 4918973246208. Its totient is φ = 691615825920.
The previous prime is 1889392630007. The next prime is 1889392630057. The reversal of 1889392630048 is 8400362939881.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24130290 + ... + 24208462.
It is an arithmetic number, because the mean of its divisors is an integer number (25619652324).
Almost surely, 21889392630048 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1889392630048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2459486623104).
1889392630048 is an abundant number, since it is smaller than the sum of its proper divisors (3029580616160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1889392630048 is a wasteful number, since it uses less digits than its factorization.
1889392630048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 78795 (or 78787 counting only the distinct ones).
The product of its (nonzero) digits is 17915904, while the sum is 61.
The spelling of 1889392630048 in words is "one trillion, eight hundred eighty-nine billion, three hundred ninety-two million, six hundred thirty thousand, forty-eight".
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