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2240033881 is a prime number
BaseRepresentation
bin1000010110000100…
…0011010001011001
312210010000111210211
42011201003101121
514041422041011
61010135411121
7106336655011
oct20541032131
95703014724
102240033881
11a4a493678
12526223aa1
1329910a747
141736dcc41
15d19c8b21
hex85843459

2240033881 has 2 divisors, whose sum is σ = 2240033882. Its totient is φ = 2240033880.

The previous prime is 2240033879. The next prime is 2240033903. The reversal of 2240033881 is 1883300422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1648766025 + 591267856 = 40605^2 + 24316^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240033881 - 21 = 2240033879 is a prime.

It is a super-2 number, since 2×22400338812 = 10035503576055844322, which contains 22 as substring.

Together with 2240033879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2240033381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120016940 + 1120016941.

It is an arithmetic number, because the mean of its divisors is an integer number (1120016941).

Almost surely, 22240033881 is an apocalyptic number.

It is an amenable number.

2240033881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240033881 is an equidigital number, since it uses as much as digits as its factorization.

2240033881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 2240033881 is about 47328.9961968348. The cubic root of 2240033881 is about 1308.4331208873.

The spelling of 2240033881 in words is "two billion, two hundred forty million, thirty-three thousand, eight hundred eighty-one".