Base | Representation |
---|---|
bin | 110000001100010111… |
… | …0100100111110110101 |
3 | 100220010200100220201102 |
4 | 1200120232210332311 |
5 | 3143423441002024 |
6 | 115313341135445 |
7 | 10322452102652 |
oct | 1403056447665 |
9 | 326120326642 |
10 | 103494078389 |
11 | 3a989788999 |
12 | 18083b5a585 |
13 | 99b4684950 |
14 | 501b11ac29 |
15 | 2a5ad771ae |
hex | 1818ba4fb5 |
103494078389 has 8 divisors (see below), whose sum is σ = 111703397400. Its totient is φ = 95320221696.
The previous prime is 103494078353. The next prime is 103494078407. The reversal of 103494078389 is 983870494301.
It can be written as a sum of positive squares in 4 ways, for example, as 340697764 + 103153380625 = 18458^2 + 321175^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-103494078389 is a prime.
It is a super-2 number, since 2×1034940783892 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (103494078319) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8859512 + ... + 8871185.
It is an arithmetic number, because the mean of its divisors is an integer number (13962924675).
Almost surely, 2103494078389 is an apocalyptic number.
It is an amenable number.
103494078389 is a deficient number, since it is larger than the sum of its proper divisors (8209319011).
103494078389 is a wasteful number, since it uses less digits than its factorization.
103494078389 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17731159.
The product of its (nonzero) digits is 5225472, while the sum is 56.
The spelling of 103494078389 in words is "one hundred three billion, four hundred ninety-four million, seventy-eight thousand, three hundred eighty-nine".
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