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1030002020 = 22551500101
BaseRepresentation
bin111101011001001…
…001010101100100
32122210010112010222
4331121021111210
54102140031040
6250112303512
734344605225
oct7531112544
92583115128
101030002020
11489455843
12248b41b98
13135513068
149ab1b24c
156065abb5
hex3d649564

1030002020 has 12 divisors (see below), whose sum is σ = 2163004284. Its totient is φ = 412000800.

The previous prime is 1030002011. The next prime is 1030002047. The reversal of 1030002020 is 202000301.

1030002020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 192709924 + 837292096 = 13882^2 + 28936^2 .

It is a super-2 number, since 2×10300020202 = 2121808322408160800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1030001989 and 1030002007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25750031 + ... + 25750070.

It is an arithmetic number, because the mean of its divisors is an integer number (180250357).

Almost surely, 21030002020 is an apocalyptic number.

1030002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030002020 is an abundant number, since it is smaller than the sum of its proper divisors (1133002264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1030002020 is a wasteful number, since it uses less digits than its factorization.

1030002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51500110 (or 51500108 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 1030002020 is about 32093.6445421831. The cubic root of 1030002020 is about 1009.9022942441.

Adding to 1030002020 its reverse (202000301), we get a palindrome (1232002321).

The spelling of 1030002020 in words is "one billion, thirty million, two thousand, twenty".

Divisors: 1 2 4 5 10 20 51500101 103000202 206000404 257500505 515001010 1030002020