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2830305660 = 2235731371149
BaseRepresentation
bin1010100010110011…
…0000100101111100
321022020201102110120
42220230300211330
521244024240120
61144503134540
7130065126000
oct25054604574
97266642416
102830305660
1112226a7596
1266ba44450
133614ab3a0
141cbc72700
15118724140
hexa8b3097c

2830305660 has 384 divisors, whose sum is σ = 10160640000. Its totient is φ = 584801280.

The previous prime is 2830305659. The next prime is 2830305661. The reversal of 2830305660 is 665030382.

It is an interprime number because it is at equal distance from previous prime (2830305659) and next prime (2830305661).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2830305661) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18995266 + ... + 18995414.

It is an arithmetic number, because the mean of its divisors is an integer number (26460000).

Almost surely, 22830305660 is an apocalyptic number.

2830305660 is a gapful number since it is divisible by the number (20) 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 2830305660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5080320000).

2830305660 is an abundant number, since it is smaller than the sum of its proper divisors (7330334340).

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

2830305660 is a wasteful number, since it uses less digits than its factorization.

2830305660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 2830305660 is about 53200.6171016841. The cubic root of 2830305660 is about 1414.5265822936.

The spelling of 2830305660 in words is "two billion, eight hundred thirty million, three hundred five thousand, six hundred sixty".