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1680850201 is a prime number
BaseRepresentation
bin110010000101111…
…1011110100011001
311100010211001000011
41210023323310121
511420244201301
6434442241521
756436663622
oct14413736431
94303731004
101680850201
117928836a8
123aaab62a1
1320a303124
1411d33ca49
159c86ea51
hex642fbd19

1680850201 has 2 divisors, whose sum is σ = 1680850202. Its totient is φ = 1680850200.

The previous prime is 1680850151. The next prime is 1680850243. The reversal of 1680850201 is 1020580861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 895505625 + 785344576 = 29925^2 + 28024^2 .

It is a cyclic number.

It is not a de Polignac number, because 1680850201 - 29 = 1680849689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1680850261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840425100 + 840425101.

It is an arithmetic number, because the mean of its divisors is an integer number (840425101).

Almost surely, 21680850201 is an apocalyptic number.

It is an amenable number.

1680850201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680850201 is an equidigital number, since it uses as much as digits as its factorization.

1680850201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 1680850201 is about 40998.1731422267. The cubic root of 1680850201 is about 1188.9848935742.

The spelling of 1680850201 in words is "one billion, six hundred eighty million, eight hundred fifty thousand, two hundred one".