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1680500101 = 71031232853
BaseRepresentation
bin110010000101010…
…0110010110000101
311100010011020202111
41210022212112011
511420202000401
6434430541021
756434005130
oct14412462605
94303136674
101680500101
11792664665
123aa967771
1320a20c977
1411d28b217
159c800e51
hex642a6585

1680500101 has 8 divisors (see below), whose sum is σ = 1922442624. Its totient is φ = 1439025360.

The previous prime is 1680500089. The next prime is 1680500119. The reversal of 1680500101 is 1010050861.

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 1680500101 - 215 = 1680467333 is a prime.

It is a super-2 number, since 2×16805001012 = 5648161178922020402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680503101) 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 7 ways as a sum of consecutive naturals, for example, 109210 + ... + 123643.

It is an arithmetic number, because the mean of its divisors is an integer number (240305328).

Almost surely, 21680500101 is an apocalyptic number.

It is an amenable number.

1680500101 is a deficient number, since it is larger than the sum of its proper divisors (241942523).

1680500101 is a wasteful number, since it uses less digits than its factorization.

1680500101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233891.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 1680500101 is about 40993.9032174298. The cubic root of 1680500101 is about 1188.9023376322.

Adding to 1680500101 its reverse (1010050861), we get a palindrome (2690550962).

The spelling of 1680500101 in words is "one billion, six hundred eighty million, five hundred thousand, one hundred one".

Divisors: 1 7 1031 7217 232853 1629971 240071443 1680500101