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7040020811 = 19950237043
BaseRepresentation
bin1101000111001111…
…00011000101001011
3200011122001010000112
412203213203011023
5103404221131221
63122324024535
7336313122005
oct64347430513
920148033015
107040020811
112a929a991a
12144583214b
138826a90b5
144aadb7375
152b30c215b
hex1a39e314b

7040020811 has 8 divisors (see below), whose sum is σ = 7077811200. Its totient is φ = 7002254952.

The previous prime is 7040020787. The next prime is 7040020817. The reversal of 7040020811 is 1180200407.

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 7040020811 - 230 = 5966278987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7040020817) 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, 996056 + ... + 1003098.

It is an arithmetic number, because the mean of its divisors is an integer number (884726400).

Almost surely, 27040020811 is an apocalyptic number.

7040020811 is a deficient number, since it is larger than the sum of its proper divisors (37790389).

7040020811 is a wasteful number, since it uses less digits than its factorization.

7040020811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12265.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 7040020811 is about 83904.8318692076. The cubic root of 7040020811 is about 1916.5698313505.

The spelling of 7040020811 in words is "seven billion, forty million, twenty thousand, eight hundred eleven".

Divisors: 1 199 5023 7043 999577 1401557 35376989 7040020811