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130801871 = 1911715879
BaseRepresentation
bin1111100101111…
…10000011001111
3100010010102102202
413302332003033
5231441124441
620551312115
73145540364
oct762760317
9303112382
10130801871
116791a422
123797b63b
1321139775
141352c46b
15b73b19b
hex7cbe0cf

130801871 has 8 divisors (see below), whose sum is σ = 137827200. Its totient is φ = 123790680.

The previous prime is 130801841. The next prime is 130801877. The reversal of 130801871 is 178108031.

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 130801871 - 26 = 130801807 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 (130801877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19310 + ... + 25188.

It is an arithmetic number, because the mean of its divisors is an integer number (17228400).

Almost surely, 2130801871 is an apocalyptic number.

130801871 is a deficient number, since it is larger than the sum of its proper divisors (7025329).

130801871 is a wasteful number, since it uses less digits than its factorization.

130801871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7069.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 130801871 is about 11436.8645615833. The cubic root of 130801871 is about 507.6191358055.

The spelling of 130801871 in words is "one hundred thirty million, eight hundred one thousand, eight hundred seventy-one".

Divisors: 1 19 1171 5879 22249 111701 6884309 130801871