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1023542041 = 2693804989
BaseRepresentation
bin111101000000100…
…000001100011001
32122022222022201111
4331000200030121
54044011321131
6245322020321
734235651404
oct7500401431
92568868644
101023542041
11485843315
122469476a1
131340908a2
1499d18d3b
155ecd1ab1
hex3d020319

1023542041 has 4 divisors (see below), whose sum is σ = 1027347300. Its totient is φ = 1019736784.

The previous prime is 1023542011. The next prime is 1023542059. The reversal of 1023542041 is 1402453201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1402453201 = 6781206821.

It can be written as a sum of positive squares in 2 ways, for example, as 495507600 + 528034441 = 22260^2 + 22979^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023542041 - 219 = 1023017753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023542011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1902226 + ... + 1902763.

It is an arithmetic number, because the mean of its divisors is an integer number (256836825).

Almost surely, 21023542041 is an apocalyptic number.

It is an amenable number.

1023542041 is a deficient number, since it is larger than the sum of its proper divisors (3805259).

1023542041 is an equidigital number, since it uses as much as digits as its factorization.

1023542041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3805258.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1023542041 is about 31992.8435904032. The cubic root of 1023542041 is about 1007.7865591293.

Adding to 1023542041 its reverse (1402453201), we get a palindrome (2425995242).

The spelling of 1023542041 in words is "one billion, twenty-three million, five hundred forty-two thousand, forty-one".

Divisors: 1 269 3804989 1023542041