Base | Representation |
---|---|
bin | 1000011101000110101… |
… | …0000001111000010100 |
3 | 111212220211002110021001 |
4 | 2013101222001320110 |
5 | 4334433323023120 |
6 | 150421053033044 |
7 | 13331315221225 |
oct | 2072152017024 |
9 | 455824073231 |
10 | 145251376660 |
11 | 56667685155 |
12 | 24198485784 |
13 | 1090a825a70 |
14 | 705cc4724c |
15 | 3ba1c7ee0a |
hex | 21d1a81e14 |
145251376660 has 96 divisors (see below), whose sum is σ = 337815878400. Its totient is φ = 52129397760.
The previous prime is 145251376651. The next prime is 145251376661. The reversal of 145251376660 is 66673152541.
It is a self number, because there is not a number n which added to its sum of digits gives 145251376660.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145251376661) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1312065 + ... + 1418455.
It is an arithmetic number, because the mean of its divisors is an integer number (3518915400).
Almost surely, 2145251376660 is an apocalyptic number.
145251376660 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 145251376660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168907939200).
145251376660 is an abundant number, since it is smaller than the sum of its proper divisors (192564501740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145251376660 is a wasteful number, since it uses less digits than its factorization.
145251376660 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 106561 (or 106559 counting only the distinct ones).
The product of its (nonzero) digits is 907200, while the sum is 46.
The spelling of 145251376660 in words is "one hundred forty-five billion, two hundred fifty-one million, three hundred seventy-six thousand, six hundred sixty".
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