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1052020745 = 51631290823
BaseRepresentation
bin111110101101001…
…001000000001001
32201022120012011022
4332231021000021
54123304130440
6252220242225
735033012606
oct7655110011
92638505138
101052020745
1149a924836
122543a0375
13139c522a9
149da0d6ad
1562559cb5
hex3eb49009

1052020745 has 8 divisors (see below), whose sum is σ = 1270170816. Its totient is φ = 836452656.

The previous prime is 1052020721. The next prime is 1052020751. The reversal of 1052020745 is 5470202501.

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 1052020745 - 212 = 1052016649 is a prime.

It is a super-2 number, since 2×10520207452 = 2213495295820710050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644597 + ... + 646226.

It is an arithmetic number, because the mean of its divisors is an integer number (158771352).

Almost surely, 21052020745 is an apocalyptic number.

It is an amenable number.

1052020745 is a deficient number, since it is larger than the sum of its proper divisors (218150071).

1052020745 is a wasteful number, since it uses less digits than its factorization.

1052020745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290991.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 1052020745 is about 32434.8692767521. The cubic root of 1052020745 is about 1017.0479636997.

The spelling of 1052020745 in words is "one billion, fifty-two million, twenty thousand, seven hundred forty-five".

Divisors: 1 5 163 815 1290823 6454115 210404149 1052020745