Base | Representation |
---|---|
bin | 101001001010001… |
… | …1001101111000000 |
3 | 10120020202010121010 |
4 | 1102110121233000 |
5 | 10312024030000 |
6 | 345013200520 |
7 | 46136662206 |
oct | 12224315700 |
9 | 3506663533 |
10 | 1381080000 |
11 | 649646933 |
12 | 326630140 |
13 | 190185b01 |
14 | d15c9076 |
15 | 813a8d50 |
hex | 52519bc0 |
1381080000 has 280 divisors, whose sum is σ = 4841912592. Its totient is φ = 346112000.
The previous prime is 1381079971. The next prime is 1381080047. The reversal of 1381080000 is 801831.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2039662 + ... + 2040338.
Almost surely, 21381080000 is an apocalyptic number.
1381080000 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 1381080000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2420956296).
1381080000 is an abundant number, since it is smaller than the sum of its proper divisors (3460832592).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1381080000 is an equidigital number, since it uses as much as digits as its factorization.
1381080000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 729 (or 704 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 21.
The square root of 1381080000 is about 37162.8847104204. The cubic root of 1381080000 is about 1113.6266413398.
Adding to 1381080000 its reverse (801831), we get a palindrome (1381881831).
The spelling of 1381080000 in words is "one billion, three hundred eighty-one million, eighty thousand".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •