Search a number
-
+
6870799530841 = 1945321372
BaseRepresentation
bin110001111111011101110…
…0100001011101101011001
3220022211201211111002212211
41203332323210023231121
51400032344134441331
622340222435035121
71306253550253441
oct143767344135531
926284654432784
106870799530841
112209987239604
1292b734a3baa1
133aabb52a128c
1419a797013121
15bdad2b6d8b1
hex63fbb90bb59

6870799530841 has 45 divisors (see below), whose sum is σ = 7446278862701. Its totient is φ = 6339748019904.

The previous prime is 6870799530787. The next prime is 6870799530851. The reversal of 6870799530841 is 1480359970786.

The square root of 6870799530841 is 2621221.

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

It can be written as a sum of positive squares in 4 ways, for example, as 666216720841 + 6204582810000 = 816221^2 + 2490900^2 .

It is not a de Polignac number, because 6870799530841 - 27 = 6870799530713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6870799530851) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 50151821325 + ... + 50151821461.

Almost surely, 26870799530841 is an apocalyptic number.

6870799530841 is the 2621221-st square number.

6870799530841 is the 1310611-st centered octagonal number.

It is an amenable number.

6870799530841 is a deficient number, since it is larger than the sum of its proper divisors (575479331860).

6870799530841 is an frugal number, since it uses more digits than its factorization.

6870799530841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 67.

The spelling of 6870799530841 in words is "six trillion, eight hundred seventy billion, seven hundred ninety-nine million, five hundred thirty thousand, eight hundred forty-one".

Divisors: 1 19 53 137 361 1007 2603 2809 6859 7261 18769 19133 49457 53371 130321 137959 356611 363527 384833 939683 994757 1014049 2621221 6775609 6907013 7311827 17853977 18900383 19266931 49803199 52722121 128736571 138924713 359107277 366071689 946260781 1001720299 2445994849 2639569547 6823038263 19032685681 50151821393 129637726997 361621027939 6870799530841