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1666000046 = 21025981197
BaseRepresentation
bin110001101001101…
…0010010010101110
311022002212120102102
41203103102102232
511402444000141
6433152055102
756166523664
oct14323222256
94262776372
101666000046
11785460547
123a5b34492
13207203a59
1411b394c34
159b3d999b
hex634d24ae

1666000046 has 8 divisors (see below), whose sum is σ = 2499274440. Its totient is φ = 832908568.

The previous prime is 1666000043. The next prime is 1666000057. The reversal of 1666000046 is 6400006661.

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

It is a junction number, because it is equal to n+sod(n) for n = 1665999982 and 1666000018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666000043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20081 + ... + 61116.

It is an arithmetic number, because the mean of its divisors is an integer number (312409305).

Almost surely, 21666000046 is an apocalyptic number.

1666000046 is a deficient number, since it is larger than the sum of its proper divisors (833274394).

1666000046 is a wasteful number, since it uses less digits than its factorization.

1666000046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91458.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1666000046 is about 40816.6638274125. The cubic root of 1666000046 is about 1185.4730071780.

The spelling of 1666000046 in words is "one billion, six hundred sixty-six million, forty-six", and thus it is an aban number.

Divisors: 1 2 10259 20518 81197 162394 833000023 1666000046