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1669013841 = 311223226799
BaseRepresentation
bin110001101111011…
…0010000101010001
311022022112200120110
41203132302011101
511404231420331
6433340431533
756234245365
oct14336620521
94268480513
101669013841
11787129890
123a6b485a9
13207a1a771
1411b93b2a5
159b7d2946
hex637b2151

1669013841 has 16 divisors (see below), whose sum is σ = 2438553600. Its totient is φ = 1006983120.

The previous prime is 1669013839. The next prime is 1669013861. The reversal of 1669013841 is 1483109661.

It is not a de Polignac number, because 1669013841 - 21 = 1669013839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1669013841.

It is not an unprimeable number, because it can be changed into a prime (1669013821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106041 + ... + 120758.

It is an arithmetic number, because the mean of its divisors is an integer number (152409600).

Almost surely, 21669013841 is an apocalyptic number.

1669013841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1669013841 is a deficient number, since it is larger than the sum of its proper divisors (769539759).

1669013841 is a wasteful number, since it uses less digits than its factorization.

1669013841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227036.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1669013841 is about 40853.5658296800. The cubic root of 1669013841 is about 1186.1874170025.

The spelling of 1669013841 in words is "one billion, six hundred sixty-nine million, thirteen thousand, eight hundred forty-one".

Divisors: 1 3 11 33 223 669 2453 7359 226799 680397 2494789 7484367 50576177 151728531 556337947 1669013841