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2242222480 = 245171978369
BaseRepresentation
bin1000010110100101…
…1001100110010000
312210021010201000001
42011221121212100
514043002104410
61010254335344
7106364401531
oct20551314620
95707121001
102242222480
11a50748a33
12526aba554
132996c5984
14173b0c688
15d1cac33a
hex85a59990

2242222480 has 80 divisors (see below), whose sum is σ = 5548506480. Its totient is φ = 839745536.

The previous prime is 2242222441. The next prime is 2242222481. The reversal of 2242222480 is 842222422.

It can be written as a sum of positive squares in 8 ways, for example, as 542144656 + 1700077824 = 23284^2 + 41232^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (2242222481) 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 15 ways as a sum of consecutive naturals, for example, 263736 + ... + 272104.

It is an arithmetic number, because the mean of its divisors is an integer number (69356331).

Almost surely, 22242222480 is an apocalyptic number.

2242222480 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 2242222480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2774253240).

2242222480 is an abundant number, since it is smaller than the sum of its proper divisors (3306284000).

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

2242222480 is a wasteful number, since it uses less digits than its factorization.

2242222480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8596 (or 8590 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 2242222480 is about 47352.1116741376. Note that the first 3 decimals coincide. The cubic root of 2242222480 is about 1308.8591119586.

The spelling of 2242222480 in words is "two billion, two hundred forty-two million, two hundred twenty-two thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 197 272 340 394 680 788 985 1360 1576 1970 3152 3349 3940 6698 7880 8369 13396 15760 16738 16745 26792 33476 33490 41845 53584 66952 66980 83690 133904 133960 142273 167380 267920 284546 334760 569092 669520 711365 1138184 1422730 1648693 2276368 2845460 3297386 5690920 6594772 8243465 11381840 13189544 16486930 26379088 28027781 32973860 56055562 65947720 112111124 131895440 140138905 224222248 280277810 448444496 560555620 1121111240 2242222480