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2231066880 = 28325773379
BaseRepresentation
bin1000010011111011…
…0110000100000000
312202111010221101200
42010332312010000
514032123120010
61005215301200
7106200520110
oct20476660400
95674127350
102231066880
11a45419629
1252321a800
132972bb123
14172447040
15d0d06cc0
hex84fb6100

2231066880 has 432 divisors, whose sum is σ = 8966455680. Its totient is φ = 501645312.

The previous prime is 2231066879. The next prime is 2231066921. The reversal of 2231066880 is 886601322.

It is a super-3 number, since 3×22310668803 (a number of 29 digits) contains 333 as substring.

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

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, 5886531 + ... + 5886909.

Almost surely, 22231066880 is an apocalyptic number.

2231066880 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 2231066880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4483227840).

2231066880 is an abundant number, since it is smaller than the sum of its proper divisors (6735388800).

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

2231066880 is a wasteful number, since it uses less digits than its factorization.

2231066880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 2231066880 is about 47234.1706818274. The cubic root of 2231066880 is about 1306.6848717904.

The spelling of 2231066880 in words is "two billion, two hundred thirty-one million, sixty-six thousand, eight hundred eighty".