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1034223221 = 2344966227
BaseRepresentation
bin111101101001001…
…111111001110101
32200002001222112202
4331221033321311
54104230120341
6250342554245
734425516023
oct7551177165
92602058482
101034223221
11490879239
1224a438985
13136360505
149b4d9713
1560be179b
hex3da4fe75

1034223221 has 4 divisors (see below), whose sum is σ = 1079189472. Its totient is φ = 989256972.

The previous prime is 1034223187. The next prime is 1034223233. The reversal of 1034223221 is 1223224301.

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: 1223224301 = 1394094177.

It is a cyclic number.

It is not a de Polignac number, because 1034223221 - 222 = 1030028917 is a prime.

It is a super-2 number, since 2×10342232212 = 2139235341711229682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1034223193 and 1034223202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1034222221) 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, 22483091 + ... + 22483136.

It is an arithmetic number, because the mean of its divisors is an integer number (269797368).

Almost surely, 21034223221 is an apocalyptic number.

It is an amenable number.

1034223221 is a deficient number, since it is larger than the sum of its proper divisors (44966251).

1034223221 is an equidigital number, since it uses as much as digits as its factorization.

1034223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44966250.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1034223221 is about 32159.3411157629. The cubic root of 1034223221 is about 1011.2800229953.

Adding to 1034223221 its reverse (1223224301), we get a palindrome (2257447522).

The spelling of 1034223221 in words is "one billion, thirty-four million, two hundred twenty-three thousand, two hundred twenty-one".

Divisors: 1 23 44966227 1034223221