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2282618881 is a prime number
BaseRepresentation
bin1000100000001110…
…0000000000000001
312220002011001110001
42020003200000001
514133322301011
61014300240001
7110364640354
oct21003400001
95802131401
102282618881
11a7152a394
12538540001
132a4b9aa7a
1417922629b
15d55db7c1
hex880e0001

2282618881 has 2 divisors, whose sum is σ = 2282618882. Its totient is φ = 2282618880.

The previous prime is 2282618869. The next prime is 2282618927. The reversal of 2282618881 is 1888162822.

It is an a-pointer prime, because the next prime (2282618927) can be obtained adding 2282618881 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1696204225 + 586414656 = 41185^2 + 24216^2 .

It is a cyclic number.

It is not a de Polignac number, because 2282618881 - 29 = 2282618369 is a prime.

It is a super-2 number, since 2×22826188812 = 10420697911795384322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2282618851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1141309440 + 1141309441.

It is an arithmetic number, because the mean of its divisors is an integer number (1141309441).

It is a Proth number, since it is equal to 17415 ⋅ 217 + 1 and 17415 < 217.

Almost surely, 22282618881 is an apocalyptic number.

It is an amenable number.

2282618881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2282618881 is an equidigital number, since it uses as much as digits as its factorization.

2282618881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 196608, while the sum is 46.

The square root of 2282618881 is about 47776.7608885324. The cubic root of 2282618881 is about 1316.6726114635.

The spelling of 2282618881 in words is "two billion, two hundred eighty-two million, six hundred eighteen thousand, eight hundred eighty-one".