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1680200032 = 25717441229
BaseRepresentation
bin110010000100101…
…1101000101100000
311100002121000010211
41210021131011200
511420112400112
6434420303504
756431315240
oct14411350540
94302530124
101680200032
1179247a175
123aa841b94
1320a136204
1411d20db20
159c7920a7
hex6425d160

1680200032 has 48 divisors (see below), whose sum is σ = 4002838560. Its totient is φ = 677726208.

The previous prime is 1680200029. The next prime is 1680200063. The reversal of 1680200032 is 2300020861.

It is a junction number, because it is equal to n+sod(n) for n = 1680199976 and 1680200012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216807 + ... + 224422.

It is an arithmetic number, because the mean of its divisors is an integer number (83392470).

Almost surely, 21680200032 is an apocalyptic number.

It is an amenable number.

1680200032 is an abundant number, since it is smaller than the sum of its proper divisors (2322638528).

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

1680200032 is a wasteful number, since it uses less digits than its factorization.

1680200032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441263 (or 441255 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1680200032 is about 40990.2431317503. The cubic root of 1680200032 is about 1188.8315702118.

Adding to 1680200032 its reverse (2300020861), we get a palindrome (3980220893).

The spelling of 1680200032 in words is "one billion, six hundred eighty million, two hundred thousand, thirty-two".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 68 112 119 136 224 238 272 476 544 952 1904 3808 441229 882458 1764916 3088603 3529832 6177206 7059664 7500893 12354412 14119328 15001786 24708824 30003572 49417648 52506251 60007144 98835296 105012502 120014288 210025004 240028576 420050008 840100016 1680200032