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1680192133 = 3315150683
BaseRepresentation
bin110010000100101…
…1011001010000101
311100002120121022021
41210021123022011
511420112122013
6434420203141
756431253224
oct14411331205
94302517267
101680192133
11792474244
123aa8394b1
1320a132739
1411d20acbb
159c78ea8d
hex6425b285

1680192133 has 4 divisors (see below), whose sum is σ = 1680275968. Its totient is φ = 1680108300.

The previous prime is 1680192131. The next prime is 1680192149. The reversal of 1680192133 is 3312910861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1680192133 - 21 = 1680192131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680192131) 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 3 ways as a sum of consecutive naturals, for example, 7810 + ... + 58492.

It is an arithmetic number, because the mean of its divisors is an integer number (420068992).

Almost surely, 21680192133 is an apocalyptic number.

It is an amenable number.

1680192133 is a deficient number, since it is larger than the sum of its proper divisors (83835).

1680192133 is an equidigital number, since it uses as much as digits as its factorization.

1680192133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83834.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1680192133 is about 40990.1467794396. The cubic root of 1680192133 is about 1188.8297072202.

The spelling of 1680192133 in words is "one billion, six hundred eighty million, one hundred ninety-two thousand, one hundred thirty-three".

Divisors: 1 33151 50683 1680192133