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8049138018 = 231341523003
BaseRepresentation
bin1110111111100010…
…00001100101100010
3202202221212120120220
413133301001211202
5112441034404033
63410412543510
7403315354455
oct73761014542
922687776526
108049138018
11346058a589
121687781b96
139b378907c
1456501949c
153219a4bb3
hex1dfc41962

8049138018 has 8 divisors (see below), whose sum is σ = 16098276048. Its totient is φ = 2683046004.

The previous prime is 8049137981. The next prime is 8049138047. The reversal of 8049138018 is 8108319408.

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

8049138018 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 670761496 + ... + 670761507.

It is an arithmetic number, because the mean of its divisors is an integer number (2012284506).

Almost surely, 28049138018 is an apocalyptic number.

8049138018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8049138018 is a wasteful number, since it uses less digits than its factorization.

8049138018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341523008.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 8049138018 is about 89716.9884581510. The cubic root of 8049138018 is about 2004.0864794892.

The spelling of 8049138018 in words is "eight billion, forty-nine million, one hundred thirty-eight thousand, eighteen".

Divisors: 1 2 3 6 1341523003 2683046006 4024569009 8049138018