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2920798693 = 19437348973
BaseRepresentation
bin1010111000010111…
…1101100111100101
321112112222221120101
42232011331213211
521440211024233
61201454504101
7132244244041
oct25605754745
97475887511
102920798693
11126979531a
12696205031
13377173867
141d9cab021
1512164bc7d
hexae17d9e5

2920798693 has 16 divisors (see below), whose sum is σ = 3189186880. Its totient is φ = 2665643904.

The previous prime is 2920798651. The next prime is 2920798711. The reversal of 2920798693 is 3968970292.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2920798693 - 229 = 2383927781 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 (2920798613) 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 15 ways as a sum of consecutive naturals, for example, 35155 + ... + 84127.

It is an arithmetic number, because the mean of its divisors is an integer number (199324180).

Almost surely, 22920798693 is an apocalyptic number.

It is an amenable number.

2920798693 is a deficient number, since it is larger than the sum of its proper divisors (268388187).

2920798693 is a wasteful number, since it uses less digits than its factorization.

2920798693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49108.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The square root of 2920798693 is about 54044.4140776824. The cubic root of 2920798693 is about 1429.4442055779. Note that the first 3 decimals are identical.

The spelling of 2920798693 in words is "two billion, nine hundred twenty million, seven hundred ninety-eight thousand, six hundred ninety-three".

Divisors: 1 19 43 73 817 1387 3139 48973 59641 930487 2105839 3575029 40010941 67925551 153726247 2920798693