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1223394241 = 2066359207
BaseRepresentation
bin100100011101011…
…1000001111000001
310011021000212101211
41020322320033001
510001142103431
6321221330121
742213452026
oct11072701701
93137025354
101223394241
11578635223
122a1866941
131665c5824
14b869d54d
157260c2b1
hex48eb83c1

1223394241 has 4 divisors (see below), whose sum is σ = 1223474112. Its totient is φ = 1223314372.

The previous prime is 1223394229. The next prime is 1223394269. The reversal of 1223394241 is 1424933221.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1223394241 - 25 = 1223394209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223394281) 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, 8941 + ... + 50266.

It is an arithmetic number, because the mean of its divisors is an integer number (305868528).

Almost surely, 21223394241 is an apocalyptic number.

It is an amenable number.

1223394241 is a deficient number, since it is larger than the sum of its proper divisors (79871).

1223394241 is an equidigital number, since it uses as much as digits as its factorization.

1223394241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79870.

The product of its digits is 10368, while the sum is 31.

The square root of 1223394241 is about 34977.0530634014. The cubic root of 1223394241 is about 1069.5197544968.

The spelling of 1223394241 in words is "one billion, two hundred twenty-three million, three hundred ninety-four thousand, two hundred forty-one".

Divisors: 1 20663 59207 1223394241