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131355655 = 5151173981
BaseRepresentation
bin1111101010001…
…01010000000111
3100011011120002021
413311011100013
5232111340110
621011224011
73153335044
oct765052007
9304146067
10131355655
11681684a2
1237ba8007
13212a1852
14136341cb
15b7ea2da
hex7d45407

131355655 has 8 divisors (see below), whose sum is σ = 158671584. Its totient is φ = 104388000.

The previous prime is 131355619. The next prime is 131355673. The reversal of 131355655 is 556553131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131355655 - 219 = 130831367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131355655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86236 + ... + 87745.

It is an arithmetic number, because the mean of its divisors is an integer number (19833948).

Almost surely, 2131355655 is an apocalyptic number.

131355655 is a deficient number, since it is larger than the sum of its proper divisors (27315929).

131355655 is a wasteful number, since it uses less digits than its factorization.

131355655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174137.

The product of its digits is 33750, while the sum is 34.

The square root of 131355655 is about 11461.0494720161. The cubic root of 131355655 is about 508.3345067308.

The spelling of 131355655 in words is "one hundred thirty-one million, three hundred fifty-five thousand, six hundred fifty-five".

Divisors: 1 5 151 755 173981 869905 26271131 131355655