Base | Representation |
---|---|
bin | 1000011110100100011… |
… | …1101011010001111100 |
3 | 111220221020210211102020 |
4 | 2013221013223101330 |
5 | 4341240111240010 |
6 | 150524114200140 |
7 | 13344135165222 |
oct | 2075107532174 |
9 | 456836724366 |
10 | 145645024380 |
11 | 56849901549 |
12 | 24288283050 |
13 | 10971251bcb |
14 | 7099236b12 |
15 | 3bc65db470 |
hex | 21e91eb47c |
145645024380 has 96 divisors (see below), whose sum is σ = 422367220800. Its totient is φ = 37455065088.
The previous prime is 145645024379. The next prime is 145645024417. The reversal of 145645024380 is 83420546541.
It is a congruent number.
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, 1435156 + ... + 1533284.
It is an arithmetic number, because the mean of its divisors is an integer number (4399658550).
Almost surely, 2145645024380 is an apocalyptic number.
145645024380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 145645024380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211183610400).
145645024380 is an abundant number, since it is smaller than the sum of its proper divisors (276722196420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145645024380 is a wasteful number, since it uses less digits than its factorization.
145645024380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 99023 (or 99021 counting only the distinct ones).
The product of its (nonzero) digits is 460800, while the sum is 42.
The spelling of 145645024380 in words is "one hundred forty-five billion, six hundred forty-five million, twenty-four thousand, three hundred eighty".
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