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131332023 = 35540461
BaseRepresentation
bin1111101001111…
…11011110110111
3100011010100200000
413310333132313
5232110111043
621010522343
73153206124
oct764773667
9304110600
10131332023
1168151769
1237b963b3
1321293b74
141362974b
15b7e32d3
hex7d3f7b7

131332023 has 12 divisors (see below), whose sum is σ = 196728168. Its totient is φ = 87554520.

The previous prime is 131331997. The next prime is 131332031. The reversal of 131332023 is 320233131.

It is not a de Polignac number, because 131332023 - 221 = 129234871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131331987 and 131332005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131332043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269988 + ... + 270473.

It is an arithmetic number, because the mean of its divisors is an integer number (16394014).

Almost surely, 2131332023 is an apocalyptic number.

131332023 is a deficient number, since it is larger than the sum of its proper divisors (65396145).

131332023 is an frugal number, since it uses more digits than its factorization.

131332023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540476 (or 540464 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 131332023 is about 11460.0184554825. The cubic root of 131332023 is about 508.3040203348.

Adding to 131332023 its reverse (320233131), we get a palindrome (451565154).

The spelling of 131332023 in words is "one hundred thirty-one million, three hundred thirty-two thousand, twenty-three".

Divisors: 1 3 9 27 81 243 540461 1621383 4864149 14592447 43777341 131332023