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12652805689769 = 72258220524281
BaseRepresentation
bin1011100000011111010111…
…1111010001000110101001
31122210121002210011010201102
42320013311333101012221
53124300421224033034
642524341345331145
72444064214556600
oct270076577210651
948717083133642
1012652805689769
11403902aa54723
121504247036ab5
1370a201459a6b
1431a583058a37
1516e1ddae397e
hexb81f5fd11a9

12652805689769 has 6 divisors (see below), whose sum is σ = 14718569884074. Its totient is φ = 10845262019760.

The previous prime is 12652805689723. The next prime is 12652805689793. The reversal of 12652805689769 is 96798650825621.

It can be written as a sum of positive squares in only one way, i.e., 6914864529769 + 5737941160000 = 2629613^2 + 2395400^2 .

It is not a de Polignac number, because 12652805689769 - 216 = 12652805624233 is a prime.

It is a super-2 number, since 2×126528056897692 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12652805689696 and 12652805689705.

It is not an unprimeable number, because it can be changed into a prime (12652805689709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129110262092 + ... + 129110262189.

It is an arithmetic number, because the mean of its divisors is an integer number (2453094980679).

Almost surely, 212652805689769 is an apocalyptic number.

It is an amenable number.

12652805689769 is a deficient number, since it is larger than the sum of its proper divisors (2065764194305).

12652805689769 is an equidigital number, since it uses as much as digits as its factorization.

12652805689769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258220524295 (or 258220524288 counting only the distinct ones).

The product of its (nonzero) digits is 783820800, while the sum is 74.

The spelling of 12652805689769 in words is "twelve trillion, six hundred fifty-two billion, eight hundred five million, six hundred eighty-nine thousand, seven hundred sixty-nine".

Divisors: 1 7 49 258220524281 1807543669967 12652805689769