Base | Representation |
---|---|
bin | 1011010100111100011… |
… | …10000100011100110100 |
3 | 1101012121010101000112111 |
4 | 11222132032010130310 |
5 | 22334041043420022 |
6 | 454444031500404 |
7 | 40055530355650 |
oct | 5523616043464 |
9 | 1335533330474 |
10 | 389201545012 |
11 | 140072142335 |
12 | 6351a987704 |
13 | 2a9173bc2c7 |
14 | 14ba1d97a60 |
15 | a1cd8bb477 |
hex | 5a9e384734 |
389201545012 has 48 divisors (see below), whose sum is σ = 799981797888. Its totient is φ = 162182753280.
The previous prime is 389201544983. The next prime is 389201545013. The reversal of 389201545012 is 210545102983.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (389201545013) 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 15 ways as a sum of consecutive naturals, for example, 1414212 + ... + 1666852.
It is an arithmetic number, because the mean of its divisors is an integer number (16666287456).
Almost surely, 2389201545012 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 389201545012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399990898944).
389201545012 is an abundant number, since it is smaller than the sum of its proper divisors (410780252876).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
389201545012 is a wasteful number, since it uses less digits than its factorization.
389201545012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 254176 (or 254174 counting only the distinct ones).
The product of its (nonzero) digits is 86400, while the sum is 40.
Adding to 389201545012 its reverse (210545102983), we get a palindrome (599746647995).
The spelling of 389201545012 in words is "three hundred eighty-nine billion, two hundred one million, five hundred forty-five thousand, twelve".
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