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4306666389 = 31784444439
BaseRepresentation
bin1000000001011001…
…01000001110010101
3102010010202022122120
410000230220032111
532310001311024
61551202450153
7211503026454
oct40054501625
912103668576
104306666389
111910001223
12a02363959
1353831490c
142cbd80b9b
151a314e479
hex100b28395

4306666389 has 8 divisors (see below), whose sum is σ = 6079999680. Its totient is φ = 2702222016.

The previous prime is 4306666387. The next prime is 4306666411. The reversal of 4306666389 is 9836666034.

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

It is not a de Polignac number, because 4306666389 - 21 = 4306666387 is a prime.

It is a super-2 number, since 2×43066663892 = 37094750772284598642, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 84444439 = 4306666389 / (4 + 3 + 0 + 6 + 6 + 6 + 6 + 3 + 8 + 9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4306666381) 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, 42222169 + ... + 42222270.

It is an arithmetic number, because the mean of its divisors is an integer number (759999960).

Almost surely, 24306666389 is an apocalyptic number.

It is an amenable number.

4306666389 is a deficient number, since it is larger than the sum of its proper divisors (1773333291).

4306666389 is a wasteful number, since it uses less digits than its factorization.

4306666389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84444459.

The product of its (nonzero) digits is 3359232, while the sum is 51.

The square root of 4306666389 is about 65625.1962968493. The cubic root of 4306666389 is about 1626.9732417656.

The spelling of 4306666389 in words is "four billion, three hundred six million, six hundred sixty-six thousand, three hundred eighty-nine".

Divisors: 1 3 17 51 84444439 253333317 1435555463 4306666389