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131325528 = 2335471897
BaseRepresentation
bin1111101001111…
…01111001011000
3100011010000202110
413310331321120
5232104404103
621010432320
73153151155
oct764757130
9304100673
10131325528
11681478a4
1237b926a0
1321290c19
141362722c
15b7e1403
hex7d3de58

131325528 has 16 divisors (see below), whose sum is σ = 328313880. Its totient is φ = 43775168.

The previous prime is 131325521. The next prime is 131325539. The reversal of 131325528 is 825523131.

It is a junction number, because it is equal to n+sod(n) for n = 131325495 and 131325504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131325521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2735925 + ... + 2735972.

Almost surely, 2131325528 is an apocalyptic number.

It is an amenable number.

131325528 is an abundant number, since it is smaller than the sum of its proper divisors (196988352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131325528 is a wasteful number, since it uses less digits than its factorization.

131325528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471906 (or 5471902 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 131325528 is about 11459.7350754719. The cubic root of 131325528 is about 508.2956408374.

Adding to 131325528 its reverse (825523131), we get a palindrome (956848659).

The spelling of 131325528 in words is "one hundred thirty-one million, three hundred twenty-five thousand, five hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 5471897 10943794 16415691 21887588 32831382 43775176 65662764 131325528