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1031310030 = 23579743133
BaseRepresentation
bin111101011110001…
…000101011001110
32122212120222101210
4331132020223032
54103003410110
6250200315250
734361663532
oct7536105316
92585528353
101031310030
1148a169543
12249472b26
1313588052a
149ad7bbc2
1560818520
hex3d788ace

1031310030 has 32 divisors (see below), whose sum is σ = 2478307104. Its totient is φ = 274664576.

The previous prime is 1031310019. The next prime is 1031310031. The reversal of 1031310030 is 300131301.

It is a junction number, because it is equal to n+sod(n) for n = 1031309988 and 1031310015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031310031) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2344 + ... + 45476.

It is an arithmetic number, because the mean of its divisors is an integer number (77447097).

Almost surely, 21031310030 is an apocalyptic number.

1031310030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031310030 is an abundant number, since it is smaller than the sum of its proper divisors (1446997074).

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

1031310030 is a wasteful number, since it uses less digits than its factorization.

1031310030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43940.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 1031310030 is about 32114.0160988936. The cubic root of 1031310030 is about 1010.3296084631.

Adding to 1031310030 its reverse (300131301), we get a palindrome (1331441331).

The spelling of 1031310030 in words is "one billion, thirty-one million, three hundred ten thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 797 1594 2391 3985 4782 7970 11955 23910 43133 86266 129399 215665 258798 431330 646995 1293990 34377001 68754002 103131003 171885005 206262006 343770010 515655015 1031310030