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1042923089 = 13174719109
BaseRepresentation
bin111110001010011…
…011111001010001
32200200102222112002
4332022123321101
54113442014324
6251253243345
734562462045
oct7612337121
92620388462
101042923089
1149578060a
12251333555
131380b8370
149c722025
156185e3ae
hex3e29be51

1042923089 has 8 divisors (see below), whose sum is σ = 1189215720. Its totient is φ = 906068736.

The previous prime is 1042923083. The next prime is 1042923103. The reversal of 1042923089 is 9803292401.

It can be written as a sum of positive squares in 4 ways, for example, as 259371025 + 783552064 = 16105^2 + 27992^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1042923089 - 216 = 1042857553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1042923083) 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 7 ways as a sum of consecutive naturals, for example, 2359334 + ... + 2359775.

It is an arithmetic number, because the mean of its divisors is an integer number (148651965).

Almost surely, 21042923089 is an apocalyptic number.

It is an amenable number.

1042923089 is a deficient number, since it is larger than the sum of its proper divisors (146292631).

1042923089 is a wasteful number, since it uses less digits than its factorization.

1042923089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719139.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1042923089 is about 32294.3197636984. The cubic root of 1042923089 is about 1014.1077322782.

The spelling of 1042923089 in words is "one billion, forty-two million, nine hundred twenty-three thousand, eighty-nine".

Divisors: 1 13 17 221 4719109 61348417 80224853 1042923089