Base | Representation |
---|---|
bin | 1000011111010101101… |
… | …0100000101101000110 |
3 | 111221110121221010110000 |
4 | 2013311122200231012 |
5 | 4342200412212030 |
6 | 151000403142130 |
7 | 13352221332063 |
oct | 2076532405506 |
9 | 457417833400 |
10 | 145851288390 |
11 | 56945282775 |
12 | 24325374946 |
13 | 109a4bc0412 |
14 | 70b87a9c6a |
15 | 3bd9781860 |
hex | 21f56a0b46 |
145851288390 has 80 divisors (see below), whose sum is σ = 394169090832. Its totient is φ = 38696204736.
The previous prime is 145851288383. The next prime is 145851288391. The reversal of 145851288390 is 93882158541.
145851288390 is a `hidden beast` number, since 1 + 4 + 585 + 1 + 28 + 8 + 39 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145851288391) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 297444 + ... + 616583.
Almost surely, 2145851288390 is an apocalyptic number.
145851288390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
145851288390 is an abundant number, since it is smaller than the sum of its proper divisors (248317802442).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145851288390 is a wasteful number, since it uses less digits than its factorization.
145851288390 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 914243 (or 914234 counting only the distinct ones).
The product of its (nonzero) digits is 2764800, while the sum is 54.
The spelling of 145851288390 in words is "one hundred forty-five billion, eight hundred fifty-one million, two hundred eighty-eight thousand, three hundred ninety".
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