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1020304130 = 25176001789
BaseRepresentation
bin111100110100001…
…001101100000010
32122002212211010212
4330310021230002
54042144213010
6245124354122
734166304416
oct7464115402
92562784125
101020304130
11483a3165a
12245845942
131334c8b71
1499714d46
155e892505
hex3cd09b02

1020304130 has 16 divisors (see below), whose sum is σ = 1944579960. Its totient is φ = 384114432.

The previous prime is 1020304091. The next prime is 1020304163. The reversal of 1020304130 is 314030201.

It can be written as a sum of positive squares in 4 ways, for example, as 720009889 + 300294241 = 26833^2 + 17329^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3000725 + ... + 3001064.

Almost surely, 21020304130 is an apocalyptic number.

1020304130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020304130 is a deficient number, since it is larger than the sum of its proper divisors (924275830).

1020304130 is a wasteful number, since it uses less digits than its factorization.

1020304130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6001813.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1020304130 is about 31942.1998303185. The cubic root of 1020304130 is about 1006.7227467308.

Adding to 1020304130 its reverse (314030201), we get a palindrome (1334334331).

The spelling of 1020304130 in words is "one billion, twenty million, three hundred four thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 6001789 12003578 30008945 60017890 102030413 204060826 510152065 1020304130