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130236655 = 5107243433
BaseRepresentation
bin1111100001101…
…00000011101111
3100002001201002211
413300310003233
5231320033110
620531231251
73140664463
oct760640357
9302051084
10130236655
11675737aa
1237748527
1320c9c413
14134224a3
15b67898a
hex7c340ef

130236655 has 8 divisors (see below), whose sum is σ = 157745232. Its totient is φ = 103215168.

The previous prime is 130236629. The next prime is 130236661. The reversal of 130236655 is 556632031.

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 130236655 - 221 = 128139503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121182 + ... + 122251.

It is an arithmetic number, because the mean of its divisors is an integer number (19718154).

Almost surely, 2130236655 is an apocalyptic number.

130236655 is a deficient number, since it is larger than the sum of its proper divisors (27508577).

130236655 is a wasteful number, since it uses less digits than its factorization.

130236655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243545.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 130236655 is about 11412.1275404720. The cubic root of 130236655 is about 506.8869120279.

Adding to 130236655 its reverse (556632031), we get a palindrome (686868686).

The spelling of 130236655 in words is "one hundred thirty million, two hundred thirty-six thousand, six hundred fifty-five".

Divisors: 1 5 107 535 243433 1217165 26047331 130236655