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131328068 = 22231427479
BaseRepresentation
bin1111101001111…
…10100001000100
3100011010011020112
413310332201010
5232104444233
621010452152
73153161444
oct764764104
9304104215
10131328068
11681497a3
1237b94058
1321292121
1413628124
15b7e2048
hex7d3e844

131328068 has 12 divisors (see below), whose sum is σ = 239816640. Its totient is φ = 62809032.

The previous prime is 131328047. The next prime is 131328073. The reversal of 131328068 is 860823131.

It is a happy number.

It is a super-2 number, since 2×1313280682 = 34494122889225248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713648 + ... + 713831.

It is an arithmetic number, because the mean of its divisors is an integer number (19984720).

Almost surely, 2131328068 is an apocalyptic number.

It is an amenable number.

131328068 is a deficient number, since it is larger than the sum of its proper divisors (108488572).

131328068 is a wasteful number, since it uses less digits than its factorization.

131328068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427506 (or 1427504 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 131328068 is about 11459.8458977423. The cubic root of 131328068 is about 508.2989178408.

The spelling of 131328068 in words is "one hundred thirty-one million, three hundred twenty-eight thousand, sixty-eight".

Divisors: 1 2 4 23 46 92 1427479 2854958 5709916 32832017 65664034 131328068