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2228130256 = 241127294639
BaseRepresentation
bin1000010011001110…
…1001000111010000
312202021121202002211
42010303221013100
514030400132011
61005032321504
7106133536402
oct20463510720
95667552084
102228130256
11a437a3270
12522243294
13296800591
14171cc0b72
15d0926b21
hex84ce91d0

2228130256 has 40 divisors (see below), whose sum is σ = 4712198400. Its totient is φ = 1012197120.

The previous prime is 2228130253. The next prime is 2228130277. The reversal of 2228130256 is 6520318222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228130253) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 477985 + ... + 482623.

It is an arithmetic number, because the mean of its divisors is an integer number (117804960).

Almost surely, 22228130256 is an apocalyptic number.

It is an amenable number.

2228130256 is an abundant number, since it is smaller than the sum of its proper divisors (2484068144).

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

2228130256 is a wasteful number, since it uses less digits than its factorization.

2228130256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7387 (or 7381 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2228130256 is about 47203.0746456203. The cubic root of 2228130256 is about 1306.1113155543. Note that the first 3 decimals are identical.

Adding to 2228130256 its reverse (6520318222), we get a palindrome (8748448478).

The spelling of 2228130256 in words is "two billion, two hundred twenty-eight million, one hundred thirty thousand, two hundred fifty-six".

Divisors: 1 2 4 8 11 16 22 44 88 176 2729 4639 5458 9278 10916 18556 21832 30019 37112 43664 51029 60038 74224 102058 120076 204116 240152 408232 480304 816464 12659831 25319662 50639324 101278648 139258141 202557296 278516282 557032564 1114065128 2228130256