| Base | Representation |
|---|---|
| bin | 10100000110100100110… |
| … | …100110011011000000000 |
| 3 | 11220001202121112101001000 |
| 4 | 110012210310303120000 |
| 5 | 140113202122313420 |
| 6 | 2534343531412000 |
| 7 | 201543420421530 |
| oct | 24064464633000 |
| 9 | 4801677471030 |
| 10 | 1381449807360 |
| 11 | 492962446a77 |
| 12 | 1a38988b4000 |
| 13 | a03686c951c |
| 14 | 4ac10abd4c0 |
| 15 | 25e04826690 |
| hex | 141a4d33600 |
1381449807360 has 640 divisors, whose sum is σ = 5759671357440. Its totient is φ = 307221921792.
The previous prime is 1381449807329. The next prime is 1381449807373. The reversal of 1381449807360 is 637089441831.
1381449807360 is a `hidden beast` number, since 1 + 3 + 81 + 4 + 498 + 0 + 73 + 6 + 0 = 666.
It is a tau number, because it is divible by the number of its divisors (640).
It is a super-2 number, since 2×13814498073602 (a number of 25 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a junction number, because it is equal to n+sod(n) for n = 1381449807297 and 1381449807306.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17863497 + ... + 17940663.
It is an arithmetic number, because the mean of its divisors is an integer number (8999486496).
Almost surely, 21381449807360 is an apocalyptic number.
1381449807360 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 1381449807360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2879835678720).
1381449807360 is an abundant number, since it is smaller than the sum of its proper divisors (4378221550080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1381449807360 is an equidigital number, since it uses as much as digits as its factorization.
1381449807360 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77243 (or 77221 counting only the distinct ones).
The product of its (nonzero) digits is 3483648, while the sum is 54.
The spelling of 1381449807360 in words is "one trillion, three hundred eighty-one billion, four hundred forty-nine million, eight hundred seven thousand, three hundred sixty".
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