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1052144045 = 5210428809
BaseRepresentation
bin111110101101100…
…111000110101101
32201022210110021222
4332231213012231
54123322102140
6252223033125
735034035231
oct7655470655
92638713258
101052144045
1149a9a9437
1225443b7a5
13139c96454
149da425c1
15625815b5
hex3eb671ad

1052144045 has 4 divisors (see below), whose sum is σ = 1262572860. Its totient is φ = 841715232.

The previous prime is 1052144033. The next prime is 1052144077. The reversal of 1052144045 is 5404412501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5404412501 = 9601562901.

It can be written as a sum of positive squares in 2 ways, for example, as 781146601 + 270997444 = 27949^2 + 16462^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052144045 - 24 = 1052144029 is a prime.

It is a super-2 number, since 2×10521440452 = 2214014182857924050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105214400 + ... + 105214409.

It is an arithmetic number, because the mean of its divisors is an integer number (315643215).

Almost surely, 21052144045 is an apocalyptic number.

It is an amenable number.

1052144045 is a deficient number, since it is larger than the sum of its proper divisors (210428815).

1052144045 is an equidigital number, since it uses as much as digits as its factorization.

1052144045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210428814.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1052144045 is about 32436.7699532490. The cubic root of 1052144045 is about 1017.0876958424.

Adding to 1052144045 its reverse (5404412501), we get a palindrome (6456556546).

The spelling of 1052144045 in words is "one billion, fifty-two million, one hundred forty-four thousand, forty-five".

Divisors: 1 5 210428809 1052144045