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131355333 = 3234614217
BaseRepresentation
bin1111101010001…
…01001011000101
3100011011112122100
413311011023011
5232111332313
621011222313
73153334104
oct765051305
9304145570
10131355333
116816822a
1237ba7999
13212a1665
141363403b
15b7ea173
hex7d452c5

131355333 has 12 divisors (see below), whose sum is σ = 189835308. Its totient is φ = 87524160.

The previous prime is 131355331. The next prime is 131355337. The reversal of 131355333 is 333553131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73564929 + 57790404 = 8577^2 + 7602^2 .

It is not a de Polignac number, because 131355333 - 21 = 131355331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131355297 and 131355306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131355331) 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, 29041 + ... + 33257.

It is an arithmetic number, because the mean of its divisors is an integer number (15819609).

Almost surely, 2131355333 is an apocalyptic number.

It is an amenable number.

131355333 is a deficient number, since it is larger than the sum of its proper divisors (58479975).

131355333 is a wasteful number, since it uses less digits than its factorization.

131355333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7684 (or 7681 counting only the distinct ones).

The product of its digits is 6075, while the sum is 27.

The square root of 131355333 is about 11461.0354244283. The cubic root of 131355333 is about 508.3340913602.

The spelling of 131355333 in words is "one hundred thirty-one million, three hundred fifty-five thousand, three hundred thirty-three".

Divisors: 1 3 9 3461 4217 10383 12651 31149 37953 14595037 43785111 131355333