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4102020689 = 131370923017
BaseRepresentation
bin1111010001111111…
…1101111001010001
3101120212200020112012
43310133331321101
531400104130224
61515012312305
7203436412664
oct36437757121
911525606465
104102020689
111815535948
12965912695
13504ac1ba0
142acb0d6db
151901c880e
hexf47fde51

4102020689 has 8 divisors (see below), whose sum is σ = 4418074920. Its totient is φ = 3786039936.

The previous prime is 4102020683. The next prime is 4102020697. The reversal of 4102020689 is 9860202014.

4102020689 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 668998225 + 3433022464 = 25865^2 + 58592^2 .

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 4102020689 - 216 = 4101955153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4102020683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166709 + ... + 189725.

It is an arithmetic number, because the mean of its divisors is an integer number (552259365).

Almost surely, 24102020689 is an apocalyptic number.

It is an amenable number.

4102020689 is a deficient number, since it is larger than the sum of its proper divisors (316054231).

4102020689 is a wasteful number, since it uses less digits than its factorization.

4102020689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36739.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 4102020689 is about 64047.0193607790. The cubic root of 4102020689 is about 1600.7835600886.

The spelling of 4102020689 in words is "four billion, one hundred two million, twenty thousand, six hundred eighty-nine".

Divisors: 1 13 13709 23017 178217 299221 315540053 4102020689