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2220346080 = 253451971127
BaseRepresentation
bin1000010001010111…
…1100101011100000
312201201222021020000
42010111330223200
514021402033310
61004153420000
7106010426121
oct20425745340
95651867200
102220346080
11a3a366967
1251b70a600
13295006464
14170c56048
15cedda4c0
hex8457cae0

2220346080 has 480 divisors, whose sum is σ = 8430428160. Its totient is φ = 548674560.

The previous prime is 2220346069. The next prime is 2220346091. The reversal of 2220346080 is 806430222.

2220346080 is a `hidden beast` number, since 2 + 2 + 20 + 34 + 608 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2220346069) and next prime (2220346091).

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 17482977 + ... + 17483103.

It is an arithmetic number, because the mean of its divisors is an integer number (17563392).

Almost surely, 22220346080 is an apocalyptic number.

2220346080 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 2220346080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4215214080).

2220346080 is an abundant number, since it is smaller than the sum of its proper divisors (6210082080).

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

2220346080 is a wasteful number, since it uses less digits than its factorization.

2220346080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 2220346080 is about 47120.5483839057. The cubic root of 2220346080 is about 1304.5885345675.

The spelling of 2220346080 in words is "two billion, two hundred twenty million, three hundred forty-six thousand, eighty".