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1044134221 = 1326178309
BaseRepresentation
bin111110001111000…
…011100101001101
32200202201111212211
4332033003211031
54114244243341
6251335230421
734605665044
oct7617034515
92622644784
101044134221
11496428549
12251818411
13138420700
149c95955b
15619ed181
hex3e3c394d

1044134221 has 6 divisors (see below), whose sum is σ = 1130630730. Its totient is φ = 963816048.

The previous prime is 1044134137. The next prime is 1044134251. The reversal of 1044134221 is 1224314401.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 44689225 + 999444996 = 6685^2 + 31614^2 .

It is not a de Polignac number, because 1044134221 - 213 = 1044126029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1044134192 and 1044134201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044134251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3088986 + ... + 3089323.

It is an arithmetic number, because the mean of its divisors is an integer number (188438455).

Almost surely, 21044134221 is an apocalyptic number.

It is an amenable number.

1044134221 is a deficient number, since it is larger than the sum of its proper divisors (86496509).

1044134221 is an equidigital number, since it uses as much as digits as its factorization.

1044134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6178335 (or 6178322 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1044134221 is about 32313.0657938859. The cubic root of 1044134221 is about 1014.5001367958.

Adding to 1044134221 its reverse (1224314401), we get a palindrome (2268448622).

The spelling of 1044134221 in words is "one billion, forty-four million, one hundred thirty-four thousand, two hundred twenty-one".

Divisors: 1 13 169 6178309 80318017 1044134221