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1680330156 = 223612295533
BaseRepresentation
bin110010000100111…
…1100110110101100
311100002211121122020
41210021330312230
511420131031111
6434423150140
756432366511
oct14411746654
94302747566
101680330156
11792558a0a
123aa8a5350
1320a1804cb
1411d245308
159c7ba906
hex6427cdac

1680330156 has 24 divisors (see below), whose sum is σ = 3985047024. Its totient is φ = 550927680.

The previous prime is 1680330097. The next prime is 1680330161. The reversal of 1680330156 is 6510330861.

1680330156 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 1147035 + ... + 1148498.

It is an arithmetic number, because the mean of its divisors is an integer number (166043626).

Almost surely, 21680330156 is an apocalyptic number.

It is an amenable number.

1680330156 is an abundant number, since it is smaller than the sum of its proper divisors (2304716868).

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

1680330156 is a wasteful number, since it uses less digits than its factorization.

1680330156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295601 (or 2295599 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 1680330156 is about 40991.8303567918. The cubic root of 1680330156 is about 1188.8622593208.

The spelling of 1680330156 in words is "one billion, six hundred eighty million, three hundred thirty thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 12 61 122 183 244 366 732 2295533 4591066 6886599 9182132 13773198 27546396 140027513 280055026 420082539 560110052 840165078 1680330156