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2281041481 is a prime number
BaseRepresentation
bin1000011111110101…
…1110111001001001
312212222011220122211
42013331132321021
514132421311411
61014202345121
7110345350465
oct20775367111
95788156584
102281041481
11a70652254
12537abb1a1
132a4767ab4
14178d354a5
15d53c9221
hex87f5ee49

2281041481 has 2 divisors, whose sum is σ = 2281041482. Its totient is φ = 2281041480.

The previous prime is 2281041479. The next prime is 2281041533. The reversal of 2281041481 is 1841401822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1277419081 + 1003622400 = 35741^2 + 31680^2 .

It is a cyclic number.

It is not a de Polignac number, because 2281041481 - 21 = 2281041479 is a prime.

It is a super-2 number, since 2×22810414812 = 10406300476085346722, which contains 22 as substring.

Together with 2281041479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2281041461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140520740 + 1140520741.

It is an arithmetic number, because the mean of its divisors is an integer number (1140520741).

Almost surely, 22281041481 is an apocalyptic number.

It is an amenable number.

2281041481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281041481 is an equidigital number, since it uses as much as digits as its factorization.

2281041481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 2281041481 is about 47760.2500098146. The cubic root of 2281041481 is about 1316.3692467632.

The spelling of 2281041481 in words is "two billion, two hundred eighty-one million, forty-one thousand, four hundred eighty-one".