Base | Representation |
---|---|
bin | 10001010011000… |
… | …11100010101000 |
3 | 101010001102011012 |
4 | 20221203202220 |
5 | 244122024313 |
6 | 22222123052 |
7 | 3411265514 |
oct | 1051434250 |
9 | 333042135 |
10 | 145111208 |
11 | 74a03220 |
12 | 40720488 |
13 | 240a9928 |
14 | 153b5144 |
15 | cb15da8 |
hex | 8a638a8 |
145111208 has 64 divisors (see below), whose sum is σ = 317952000. Its totient is φ = 61387200.
The previous prime is 145111171. The next prime is 145111223. The reversal of 145111208 is 802111541.
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 15 ways as a sum of consecutive naturals, for example, 97913 + ... + 99383.
It is an arithmetic number, because the mean of its divisors is an integer number (4968000).
Almost surely, 2145111208 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 145111208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158976000).
145111208 is an abundant number, since it is smaller than the sum of its proper divisors (172840792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145111208 is a wasteful number, since it uses less digits than its factorization.
145111208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1566 (or 1562 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 23.
The square root of 145111208 is about 12046.2113546127. The cubic root of 145111208 is about 525.4930612038.
Adding to 145111208 its reverse (802111541), we get a palindrome (947222749).
The spelling of 145111208 in words is "one hundred forty-five million, one hundred eleven thousand, two hundred eight".
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