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1020210020 = 225143335597
BaseRepresentation
bin111100110011110…
…010101101100100
32122002201001001022
4330303302231210
54042133210040
6245122350312
734165433144
oct7463625544
92562631038
101020210020
11483977985
122457bb398
1313349508b
14996cc924
155e8746b5
hex3ccf2b64

1020210020 has 24 divisors (see below), whose sum is σ = 2143996344. Its totient is φ = 407787776.

The previous prime is 1020210019. The next prime is 1020210047. The reversal of 1020210020 is 200120201.

Adding to 1020210020 its reverse (200120201), we get a palindrome (1220330221).

It can be written as a sum of positive squares in 4 ways, for example, as 76983076 + 943226944 = 8774^2 + 30712^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10862 + ... + 46458.

It is an arithmetic number, because the mean of its divisors is an integer number (89333181).

Almost surely, 21020210020 is an apocalyptic number.

1020210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020210020 is an abundant number, since it is smaller than the sum of its proper divisors (1123786324).

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

1020210020 is a wasteful number, since it uses less digits than its factorization.

1020210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37039 (or 37037 counting only the distinct ones).

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

The square root of 1020210020 is about 31940.7266667495. The cubic root of 1020210020 is about 1006.6917933487.

The spelling of 1020210020 in words is "one billion, twenty million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 1433 2866 5732 7165 14330 28660 35597 71194 142388 177985 355970 711940 51010501 102021002 204042004 255052505 510105010 1020210020