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1038020885 = 51121715737
BaseRepresentation
bin111101110111101…
…111000100010101
32200100012220221222
4331313233010111
54111213132020
6251000220125
734503013646
oct7567570425
92610186858
101038020885
11492a32500
1224b76a645
1313708cc55
149bc076cd
15611e1b25
hex3ddef115

1038020885 has 12 divisors (see below), whose sum is σ = 1369158924. Its totient is φ = 754923840.

The previous prime is 1038020873. The next prime is 1038020887. The reversal of 1038020885 is 5880208301.

It can be written as a sum of positive squares in 2 ways, for example, as 645109201 + 392911684 = 25399^2 + 19822^2 .

It is not a de Polignac number, because 1038020885 - 24 = 1038020869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1038020887) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 857264 + ... + 858473.

It is an arithmetic number, because the mean of its divisors is an integer number (114096577).

Almost surely, 21038020885 is an apocalyptic number.

It is an amenable number.

1038020885 is a deficient number, since it is larger than the sum of its proper divisors (331138039).

1038020885 is a wasteful number, since it uses less digits than its factorization.

1038020885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715764 (or 1715753 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 1038020885 is about 32218.3315055265. The cubic root of 1038020885 is about 1012.5163165587.

The spelling of 1038020885 in words is "one billion, thirty-eight million, twenty thousand, eight hundred eighty-five".

Divisors: 1 5 11 55 121 605 1715737 8578685 18873107 94365535 207604177 1038020885