Base | Representation |
---|---|
bin | 101100010101000… |
… | …0110001000000000 |
3 | 10211122212021120100 |
4 | 1120222012020000 |
5 | 11021240231034 |
6 | 403332442400 |
7 | 51600643014 |
oct | 13052061000 |
9 | 3748767510 |
10 | 1487430144 |
11 | 6a3685312 |
12 | 356179400 |
13 | 1a9210aa5 |
14 | 101790544 |
15 | 8a8b5099 |
hex | 58a86200 |
1487430144 has 120 divisors (see below), whose sum is σ = 4398085692. Its totient is φ = 483655680.
The previous prime is 1487430073. The next prime is 1487430151. The reversal of 1487430144 is 4410347841.
It is a happy number.
1487430144 is a `hidden beast` number, since 1 + 4 + 87 + 430 + 144 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 1031180544 + 456249600 = 32112^2 + 21360^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 1487430099 and 1487430108.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184992 + ... + 192864.
Almost surely, 21487430144 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 1487430144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2199042846).
1487430144 is an abundant number, since it is smaller than the sum of its proper divisors (2910655548).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1487430144 is an equidigital number, since it uses as much as digits as its factorization.
1487430144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7938 (or 7919 counting only the distinct ones).
The product of its (nonzero) digits is 43008, while the sum is 36.
The square root of 1487430144 is about 38567.2159223349. The cubic root of 1487430144 is about 1141.5077372483.
Adding to 1487430144 its reverse (4410347841), we get a palindrome (5897777985).
The spelling of 1487430144 in words is "one billion, four hundred eighty-seven million, four hundred thirty thousand, one hundred forty-four".
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