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135636031 = 4710128573
BaseRepresentation
bin10000001010110…
…10010000111111
3100110020000122201
420011122100333
5234210323111
621243052331
73234613216
oct1005322077
9313200581
10135636031
116a6213a3
12395110a7
132213cc0b
141402a07d
15bd936c1
hex815a43f

135636031 has 8 divisors (see below), whose sum is σ = 139898304. Its totient is φ = 131431200.

The previous prime is 135636029. The next prime is 135636101. The reversal of 135636031 is 130636531.

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

It is a cyclic number.

It is not a de Polignac number, because 135636031 - 21 = 135636029 is a prime.

It is a super-2 number, since 2×1356360312 = 36794265810865922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135636331) by changing a digit.

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, 9540 + ... + 19033.

It is an arithmetic number, because the mean of its divisors is an integer number (17487288).

Almost surely, 2135636031 is an apocalyptic number.

135636031 is a deficient number, since it is larger than the sum of its proper divisors (4262273).

135636031 is a wasteful number, since it uses less digits than its factorization.

135636031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28721.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 135636031 is about 11646.2882928425. The cubic root of 135636031 is about 513.7971500426.

The spelling of 135636031 in words is "one hundred thirty-five million, six hundred thirty-six thousand, thirty-one".

Divisors: 1 47 101 4747 28573 1342931 2885873 135636031