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7850996653369 = 317288392
BaseRepresentation
bin111001000111111001111…
…0111011101110100111001
31000210112210110022010101111
41302033303313131310321
52012112320120401434
624410410441120321
71440134005320022
oct162176367356471
930715713263344
107850996653369
112557652a32561
12a696aaa890a1
1344c46597c82c
141d1dc1407c49
15d9350b05964
hex723f3dddd39

7850996653369 has 9 divisors (see below), whose sum is σ = 7876732466127. Its totient is φ = 7825344682104.

The previous prime is 7850996653351. The next prime is 7850996653459. The reversal of 7850996653369 is 9633566990587.

The square root of 7850996653369 is 2801963.

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

It can be written as a sum of positive squares in only one way, i.e., 439469555625 + 7411527097744 = 662925^2 + 2722412^2 .

It is not a de Polignac number, because 7850996653369 - 215 = 7850996620601 is a prime.

It is a super-2 number, since 2×78509966533692 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7850996653295 and 7850996653304.

It is not an unprimeable number, because it can be changed into a prime (7850996653319) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 888217852 + ... + 888226690.

Almost surely, 27850996653369 is an apocalyptic number.

7850996653369 is the 2801963-rd square number.

7850996653369 is the 1400982-nd centered octagonal number.

It is an amenable number.

7850996653369 is a deficient number, since it is larger than the sum of its proper divisors (25735812758).

7850996653369 is an frugal number, since it uses more digits than its factorization.

7850996653369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18312 (or 9156 counting only the distinct ones).

The product of its (nonzero) digits is 1984046400, while the sum is 76.

The spelling of 7850996653369 in words is "seven trillion, eight hundred fifty billion, nine hundred ninety-six million, six hundred fifty-three thousand, three hundred sixty-nine".

Divisors: 1 317 8839 100489 2801963 78127921 888222271 24766550957 7850996653369