Search a number
-
+
1330855680 = 28357211643
BaseRepresentation
bin100111101010011…
…0011111100000000
310102202020110210010
41033110303330000
510211144340210
6340020504520
744660041500
oct11724637400
93382213703
101330855680
11623262630
1231184b140
1318294c58b
14c8a73a00
157bc87920
hex4f533f00

1330855680 has 432 divisors, whose sum is σ = 5402242944. Its totient is φ = 276111360.

The previous prime is 1330855667. The next prime is 1330855751. The reversal of 1330855680 is 865580331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2069439 + ... + 2070081.

It is an arithmetic number, because the mean of its divisors is an integer number (12505192).

Almost surely, 21330855680 is an apocalyptic number.

1330855680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1330855680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2701121472).

1330855680 is an abundant number, since it is smaller than the sum of its proper divisors (4071387264).

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

1330855680 is a wasteful number, since it uses less digits than its factorization.

1330855680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1330855680 is about 36480.8947258699. The cubic root of 1330855680 is about 1099.9602409872.

The spelling of 1330855680 in words is "one billion, three hundred thirty million, eight hundred fifty-five thousand, six hundred eighty".