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1684386041 = 131033125429
BaseRepresentation
bin110010001100101…
…1011000011111001
311100101110200021012
41210121123003321
511422200323131
6435050123305
756512021322
oct14431330371
94311420235
101684386041
11794879188
123b0120535
1320ac70640
1411d9bd449
159cd1c52b
hex6465b0f9

1684386041 has 8 divisors (see below), whose sum is σ = 1815724680. Its totient is φ = 1553300352.

The previous prime is 1684386007. The next prime is 1684386101. The reversal of 1684386041 is 1406834861.

It can be written as a sum of positive squares in 4 ways, for example, as 187005625 + 1497380416 = 13675^2 + 38696^2 .

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 1684386041 - 218 = 1684123897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1684386041.

It is not an unprimeable number, because it can be changed into a prime (1684386001) 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, 49286 + ... + 76143.

It is an arithmetic number, because the mean of its divisors is an integer number (226965585).

Almost surely, 21684386041 is an apocalyptic number.

It is an amenable number.

1684386041 is a deficient number, since it is larger than the sum of its proper divisors (131338639).

1684386041 is a wasteful number, since it uses less digits than its factorization.

1684386041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126475.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 1684386041 is about 41041.2724096123. The cubic root of 1684386041 is about 1189.8180266902.

The spelling of 1684386041 in words is "one billion, six hundred eighty-four million, three hundred eighty-six thousand, forty-one".

Divisors: 1 13 1033 13429 125429 1630577 129568157 1684386041