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1042201223 = 7148885889
BaseRepresentation
bin111110000111101…
…011101010000111
32200122002022022022
4332013223222013
54113300414343
6251225553355
734553364350
oct7607535207
92618068268
101042201223
11495328228
1225104585b
13137bc491b
149c5b4d27
156176a568
hex3e1eba87

1042201223 has 4 divisors (see below), whose sum is σ = 1191087120. Its totient is φ = 893315328.

The previous prime is 1042201219. The next prime is 1042201247. The reversal of 1042201223 is 3221022401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1042201223 - 22 = 1042201219 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 (1042201283) 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, 74442938 + ... + 74442951.

It is an arithmetic number, because the mean of its divisors is an integer number (297771780).

Almost surely, 21042201223 is an apocalyptic number.

1042201223 is a deficient number, since it is larger than the sum of its proper divisors (148885897).

1042201223 is an equidigital number, since it uses as much as digits as its factorization.

1042201223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148885896.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1042201223 is about 32283.1414673355. The cubic root of 1042201223 is about 1013.8737045208.

Adding to 1042201223 its reverse (3221022401), we get a palindrome (4263223624).

The spelling of 1042201223 in words is "one billion, forty-two million, two hundred one thousand, two hundred twenty-three".

Divisors: 1 7 148885889 1042201223