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1680063 = 372111039
BaseRepresentation
bin110011010001010111111
310011100121120
412122022333
5412230223
6100002023
720165100
oct6321277
93140546
101680063
11a48290
12690313
1346a928
1431a3a7
15232be3
hex19a2bf

1680063 has 24 divisors (see below), whose sum is σ = 2845440. Its totient is φ = 871920.

The previous prime is 1680023. The next prime is 1680071. The reversal of 1680063 is 3600861.

It is not a de Polignac number, because 1680063 - 28 = 1679807 is a prime.

It is a super-2 number, since 2×16800632 = 5645223367938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1098 + ... + 2136.

It is an arithmetic number, because the mean of its divisors is an integer number (118560).

21680063 is an apocalyptic number.

1680063 is a deficient number, since it is larger than the sum of its proper divisors (1165377).

1680063 is a wasteful number, since it uses less digits than its factorization.

1680063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1680063 is about 1296.1724422314. The cubic root of 1680063 is about 118.8799250172.

The spelling of 1680063 in words is "one million, six hundred eighty thousand, sixty-three".

Divisors: 1 3 7 11 21 33 49 77 147 231 539 1039 1617 3117 7273 11429 21819 34287 50911 80003 152733 240009 560021 1680063