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2228575888 = 247113834723
BaseRepresentation
bin1000010011010101…
…0101111010010000
312202022110101101201
42010311111322100
514031003412023
61005050040544
7106140403540
oct20465257220
95668411351
102228575888
11a43a78060
12522419154
13296928376
14171d99320
15d09b3bad
hex84d55e90

2228575888 has 80 divisors (see below), whose sum is σ = 5398511616. Its totient is φ = 865825920.

The previous prime is 2228575801. The next prime is 2228575889. The reversal of 2228575888 is 8885758222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2228575889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469495 + ... + 474217.

Almost surely, 22228575888 is an apocalyptic number.

2228575888 is a gapful number since it is divisible by the number (28) 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 2228575888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2699255808).

2228575888 is an abundant number, since it is smaller than the sum of its proper divisors (3169935728).

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

2228575888 is a wasteful number, since it uses less digits than its factorization.

2228575888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132 (or 5126 counting only the distinct ones).

The product of its digits is 5734400, while the sum is 55.

The square root of 2228575888 is about 47207.7947800996. The cubic root of 2228575888 is about 1306.1983849999.

The spelling of 2228575888 in words is "two billion, two hundred twenty-eight million, five hundred seventy-five thousand, eight hundred eighty-eight".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 56 77 88 112 154 176 308 383 616 766 1232 1532 2681 3064 4213 4723 5362 6128 8426 9446 10724 16852 18892 21448 29491 33061 33704 37784 42896 51953 58982 66122 67408 75568 103906 117964 132244 207812 235928 264488 363671 415624 471856 528976 727342 831248 1454684 1808909 2909368 3617818 5818736 7235636 12662363 14471272 19897999 25324726 28942544 39795998 50649452 79591996 101298904 139285993 159183992 202597808 278571986 318367984 557143972 1114287944 2228575888