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1680297883 = 111491025197
BaseRepresentation
bin110010000100111…
…0100111110011011
311100002202222100221
41210021310332123
511420124013013
6434422340511
756432203435
oct14411647633
94302688327
101680297883
11792536740
123aa88a737
1320a16b904
1411d237655
159c7b108d
hex64274f9b

1680297883 has 8 divisors (see below), whose sum is σ = 1845356400. Its totient is φ = 1517290080.

The previous prime is 1680297877. The next prime is 1680297947. The reversal of 1680297883 is 3887920861.

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 1680297883 - 225 = 1646743451 is a prime.

It is a super-2 number, since 2×16802978832 = 5646801951228563378, which contains 22 as substring.

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 1680297883.

It is not an unprimeable number, because it can be changed into a prime (1680297803) 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 in 7 ways as a sum of consecutive naturals, for example, 510960 + ... + 514237.

It is an arithmetic number, because the mean of its divisors is an integer number (230669550).

Almost surely, 21680297883 is an apocalyptic number.

1680297883 is a deficient number, since it is larger than the sum of its proper divisors (165058517).

1680297883 is a wasteful number, since it uses less digits than its factorization.

1680297883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025357.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 1680297883 is about 40991.4367032921. The cubic root of 1680297883 is about 1188.8546480393.

The spelling of 1680297883 in words is "one billion, six hundred eighty million, two hundred ninety-seven thousand, eight hundred eighty-three".

Divisors: 1 11 149 1639 1025197 11277167 152754353 1680297883