Base | Representation |
---|---|
bin | 101001001000100… |
… | …1110001001100001 |
3 | 10120012011202201102 |
4 | 1102101032021201 |
5 | 10311320333423 |
6 | 344543244145 |
7 | 46126620101 |
oct | 12221161141 |
9 | 3505152642 |
10 | 1380246113 |
11 | 649127374 |
12 | 3262a9655 |
13 | 18cc5339c |
14 | d144d201 |
15 | 81291c28 |
hex | 5244e261 |
1380246113 has 8 divisors (see below), whose sum is σ = 1436971368. Its totient is φ = 1324543104.
The previous prime is 1380246107. The next prime is 1380246137. The reversal of 1380246113 is 3116420831.
It can be written as a sum of positive squares in 4 ways, for example, as 224790049 + 1155456064 = 14993^2 + 33992^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1380246113 - 220 = 1379197537 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1380246143) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252806 + ... + 258207.
It is an arithmetic number, because the mean of its divisors is an integer number (179621421).
Almost surely, 21380246113 is an apocalyptic number.
It is an amenable number.
1380246113 is a deficient number, since it is larger than the sum of its proper divisors (56725255).
1380246113 is an equidigital number, since it uses as much as digits as its factorization.
1380246113 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 511123.
The product of its (nonzero) digits is 3456, while the sum is 29.
The square root of 1380246113 is about 37151.6636639599. The cubic root of 1380246113 is about 1113.4024627395.
Adding to 1380246113 its reverse (3116420831), we get a palindrome (4496666944).
The spelling of 1380246113 in words is "one billion, three hundred eighty million, two hundred forty-six thousand, one hundred thirteen".
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