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117271855 = 5131179041
BaseRepresentation
bin1101111110101…
…10110100101111
322011200000202001
412333112310233
5220010144410
615345313131
72622536311
oct677266457
9264600661
10117271855
1160219098
12333357a7
131b3b023c
14118097b1
15a46733a
hex6fd6d2f

117271855 has 8 divisors (see below), whose sum is σ = 141801264. Its totient is φ = 93100800.

The previous prime is 117271841. The next prime is 117271859. The reversal of 117271855 is 558172711.

It is a happy number.

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

It is not a de Polignac number, because 117271855 - 25 = 117271823 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 (117271859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88866 + ... + 90175.

It is an arithmetic number, because the mean of its divisors is an integer number (17725158).

Almost surely, 2117271855 is an apocalyptic number.

117271855 is a deficient number, since it is larger than the sum of its proper divisors (24529409).

117271855 is a wasteful number, since it uses less digits than its factorization.

117271855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179177.

The product of its digits is 19600, while the sum is 37.

The square root of 117271855 is about 10829.2130369663. The cubic root of 117271855 is about 489.4758451739.

The spelling of 117271855 in words is "one hundred seventeen million, two hundred seventy-one thousand, eight hundred fifty-five".

Divisors: 1 5 131 655 179041 895205 23454371 117271855