Search a number
-
+
103610839881481 = 101789412
BaseRepresentation
bin10111100011101111000111…
…010011100101011100001001
3111120212002200120120220010221
4113203233013103211130021
5102040030000002201411
61004210055052510041
730552431125545352
oct2743570723453411
9446762616526127
10103610839881481
1130017123a90889
12b75458477b321
1345a75ca2c82aa
141b82b1189cd29
15bea250843071
hex5e3bc74e5709

103610839881481 has 3 divisors (see below), whose sum is σ = 103610850060423. Its totient is φ = 103610829702540.

The previous prime is 103610839881427. The next prime is 103610839881491. The reversal of 103610839881481 is 184188938016301.

The square root of 103610839881481 is 10178941.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 100663918325881 + 2946921555600 = 10033141^2 + 1716660^2 .

It is not a de Polignac number, because 103610839881481 - 223 = 103610831492873 is a prime.

It is a super-3 number, since 3×1036108398814813 (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103610839881491) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5089471 + ... + 15268411.

It is an arithmetic number, because the mean of its divisors is an integer number (34536950020141).

Almost surely, 2103610839881481 is an apocalyptic number.

103610839881481 is the 10178941-st square number.

103610839881481 is the 5089471-st centered octagonal number.

It is an amenable number.

103610839881481 is a deficient number, since it is larger than the sum of its proper divisors (10178942).

103610839881481 is an frugal number, since it uses more digits than its factorization.

103610839881481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20357882 (or 10178941 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 61.

The spelling of 103610839881481 in words is "one hundred three trillion, six hundred ten billion, eight hundred thirty-nine million, eight hundred eighty-one thousand, four hundred eighty-one".

Divisors: 1 10178941 103610839881481