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2031523325 = 521338916069
BaseRepresentation
bin111100100010110…
…1001010111111101
312020120200002002122
41321011221113331
513130032221300
6533330332325
7101225443346
oct17105512775
95216602078
102031523325
119528185a7
1248842a0a5
13264b63810
14153b430cd
15bd53cc85
hex791695fd

2031523325 has 24 divisors (see below), whose sum is σ = 2720008200. Its totient is φ = 1496252160.

The previous prime is 2031523313. The next prime is 2031523327. The reversal of 2031523325 is 5233251302.

It can be written as a sum of positive squares in 12 ways, for example, as 1431714244 + 599809081 = 37838^2 + 24491^2 .

It is not a de Polignac number, because 2031523325 - 226 = 1964414461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2031523294 and 2031523303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031523327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118391 + ... + 134459.

It is an arithmetic number, because the mean of its divisors is an integer number (113333675).

Almost surely, 22031523325 is an apocalyptic number.

2031523325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2031523325 is a deficient number, since it is larger than the sum of its proper divisors (688484875).

2031523325 is a wasteful number, since it uses less digits than its factorization.

2031523325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16481 (or 16476 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 2031523325 is about 45072.4231099239. The cubic root of 2031523325 is about 1266.5060566981.

Adding to 2031523325 its reverse (5233251302), we get a palindrome (7264774627).

The spelling of 2031523325 in words is "two billion, thirty-one million, five hundred twenty-three thousand, three hundred twenty-five".

Divisors: 1 5 13 25 65 325 389 1945 5057 9725 16069 25285 80345 126425 208897 401725 1044485 5222425 6250841 31254205 81260933 156271025 406304665 2031523325