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2728028160 = 211345111323
BaseRepresentation
bin1010001010011010…
…0110100000000000
321001010021012010000
42202212212200000
521041333400120
61130411040000
7124413566604
oct24246464000
97033235100
102728028160
11117a99aa30
12641740000
1334624b060
141bc44b504
1510e76e990
hexa29a6800

2728028160 has 960 divisors, whose sum is σ = 11987015040. Its totient is φ = 583925760.

The previous prime is 2728028141. The next prime is 2728028161. The reversal of 2728028160 is 618208272.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2728028161) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 118609909 + ... + 118609931.

It is an arithmetic number, because the mean of its divisors is an integer number (12486474).

Almost surely, 22728028160 is an apocalyptic number.

2728028160 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 2728028160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5993507520).

2728028160 is an abundant number, since it is smaller than the sum of its proper divisors (9258986880).

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

2728028160 is a wasteful number, since it uses less digits than its factorization.

2728028160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2728028160 is about 52230.5290036392. The cubic root of 2728028160 is about 1397.2784133702.

The spelling of 2728028160 in words is "two billion, seven hundred twenty-eight million, twenty-eight thousand, one hundred sixty".