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10206525135231 = 34397317396683
BaseRepresentation
bin1001010010000110010001…
…0011100001100101111111
31100010201211021201011010000
42110201210103201211333
52314210430413311411
633412451331245343
72102253131131215
oct224414423414577
940121737634100
1010206525135231
11328562139a967
12118a114749853
13590618289159
14273dd9a78cb5
1512a766180956
hex948644e197f

10206525135231 has 20 divisors (see below), whose sum is σ = 15285189508072. Its totient is φ = 6787210647888.

The previous prime is 10206525135199. The next prime is 10206525135239. The reversal of 10206525135231 is 13253152560201.

10206525135231 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 65 + 2 + 513 + 52 + 31 = 666.

It is not a de Polignac number, because 10206525135231 - 25 = 10206525135199 is a prime.

It is a super-2 number, since 2×102065251352312 (a number of 27 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 (10206525135239) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 158666185 + ... + 158730498.

Almost surely, 210206525135231 is an apocalyptic number.

10206525135231 is a deficient number, since it is larger than the sum of its proper divisors (5078664372841).

10206525135231 is an equidigital number, since it uses as much as digits as its factorization.

10206525135231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317397092 (or 317397083 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 10206525135231 its reverse (13253152560201), we get a palindrome (23459677695432).

The spelling of 10206525135231 in words is "ten trillion, two hundred six billion, five hundred twenty-five million, one hundred thirty-five thousand, two hundred thirty-one".

Divisors: 1 3 9 27 81 397 1191 3573 10719 32157 317396683 952190049 2856570147 8569710441 25709131323 126006483151 378019449453 1134058348359 3402175045077 10206525135231