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118950005 = 537642973
BaseRepresentation
bin1110001011100…
…00100001110101
322021211021201202
413011300201311
5220422400010
615445302245
72643026006
oct705604165
9267737652
10118950005
1161164999
1233a04985
131b84a025
1411b251ad
15a6996a5
hex7170875

118950005 has 8 divisors (see below), whose sum is σ = 146598072. Its totient is φ = 92587968.

The previous prime is 118949981. The next prime is 118950011. The reversal of 118950005 is 500059811.

It can be written as a sum of positive squares in 4 ways, for example, as 25421764 + 93528241 = 5042^2 + 9671^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-118950005 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118950005.

It is a congruent number.

It is an unprimeable number.

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, 321302 + ... + 321671.

It is an arithmetic number, because the mean of its divisors is an integer number (18324759).

Almost surely, 2118950005 is an apocalyptic number.

It is an amenable number.

118950005 is a deficient number, since it is larger than the sum of its proper divisors (27648067).

118950005 is an equidigital number, since it uses as much as digits as its factorization.

118950005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643015.

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 118950005 is about 10906.4203568357. The cubic root of 118950005 is about 491.7995815442.

The spelling of 118950005 in words is "one hundred eighteen million, nine hundred fifty thousand, five".

Divisors: 1 5 37 185 642973 3214865 23790001 118950005