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2240411221 = 16127138923
BaseRepresentation
bin1000010110001001…
…1111011001010101
312210010201200102101
42011202133121111
514042021124341
61010151442101
7106343116066
oct20542373125
95703650371
102240411221
11a4a721124
12526386331
13299210419
1417379a56d
15d1a50831
hex8589f655

2240411221 has 4 divisors (see below), whose sum is σ = 2240566272. Its totient is φ = 2240256172.

The previous prime is 2240411203. The next prime is 2240411227. The reversal of 2240411221 is 1221140422.

2240411221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1221140422 = 2610570211.

It is a cyclic number.

It is not a de Polignac number, because 2240411221 - 225 = 2206856789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240411227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53335 + ... + 85588.

It is an arithmetic number, because the mean of its divisors is an integer number (560141568).

Almost surely, 22240411221 is an apocalyptic number.

It is an amenable number.

2240411221 is a deficient number, since it is larger than the sum of its proper divisors (155051).

2240411221 is a wasteful number, since it uses less digits than its factorization.

2240411221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155050.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2240411221 is about 47332.9823801543. The cubic root of 2240411221 is about 1308.5065865072.

Adding to 2240411221 its reverse (1221140422), we get a palindrome (3461551643).

The spelling of 2240411221 in words is "two billion, two hundred forty million, four hundred eleven thousand, two hundred twenty-one".

Divisors: 1 16127 138923 2240411221