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2160000000 = 2103357
BaseRepresentation
bin1000000010111110…
…1111110000000000
312120112102100222000
42000233233300000
513410430000000
6554200144000
7104345461044
oct20057576000
95515370860
102160000000
11a09299a74
12503468000
13285667b12
14166c28024
15c996a000
hex80befc00

2160000000 has 352 divisors, whose sum is σ = 7996073280. Its totient is φ = 576000000.

The previous prime is 2159999983. The next prime is 2160000019. The reversal of 2160000000 is 612.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 431999998 + ... + 432000002.

Almost surely, 22160000000 is an apocalyptic number.

2160000000 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 2160000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3998036640).

2160000000 is an abundant number, since it is smaller than the sum of its proper divisors (5836073280).

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

2160000000 is an frugal number, since it uses more digits than its factorization.

2160000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2160000000 is about 46475.8001544890. The cubic root of 2160000000 is about 1292.6608140191.

Adding to 2160000000 its reverse (612), we get a palindrome (2160000612).

The spelling of 2160000000 in words is "two billion, one hundred sixty million", and thus it is an aban number.