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130795687 = 1123516979
BaseRepresentation
bin1111100101111…
…00100010100111
3100010010002221201
413302330202213
5231440430222
620551223331
73145513351
oct762744247
9303102851
10130795687
1167915810
1237977b47
13211369c9
141352a0d1
15b739427
hex7cbc8a7

130795687 has 8 divisors (see below), whose sum is σ = 148890240. Its totient is φ = 113735160.

The previous prime is 130795669. The next prime is 130795697. The reversal of 130795687 is 786597031.

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

It is not a de Polignac number, because 130795687 - 27 = 130795559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130795657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258237 + ... + 258742.

It is an arithmetic number, because the mean of its divisors is an integer number (18611280).

Almost surely, 2130795687 is an apocalyptic number.

130795687 is a deficient number, since it is larger than the sum of its proper divisors (18094553).

130795687 is a wasteful number, since it uses less digits than its factorization.

130795687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517013.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 130795687 is about 11436.5942045698. The cubic root of 130795687 is about 507.6111360061.

The spelling of 130795687 in words is "one hundred thirty million, seven hundred ninety-five thousand, six hundred eighty-seven".

Divisors: 1 11 23 253 516979 5686769 11890517 130795687