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1680887082 = 23725717303
BaseRepresentation
bin110010000110000…
…0100110100101010
311100010212220121010
41210030010310222
511420301341312
6434443124350
756440206300
oct14414046452
94303786533
101680887082
117928a9386
123aab136b6
1320a316b54
1411d34c270
159c87a93c
hex64304d2a

1680887082 has 24 divisors (see below), whose sum is σ = 3910635936. Its totient is φ = 480253368.

The previous prime is 1680887077. The next prime is 1680887083. The reversal of 1680887082 is 2807880861.

It is not an unprimeable number, because it can be changed into a prime (1680887083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2858358 + ... + 2858945.

It is an arithmetic number, because the mean of its divisors is an integer number (162943164).

Almost surely, 21680887082 is an apocalyptic number.

1680887082 is an abundant number, since it is smaller than the sum of its proper divisors (2229748854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1680887082 is a wasteful number, since it uses less digits than its factorization.

1680887082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5717322 (or 5717315 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 48.

The square root of 1680887082 is about 40998.6229280936. The cubic root of 1680887082 is about 1188.9935896954.

The spelling of 1680887082 in words is "one billion, six hundred eighty million, eight hundred eighty-seven thousand, eighty-two".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 5717303 11434606 17151909 34303818 40021121 80042242 120063363 240126726 280147847 560295694 840443541 1680887082