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8203130 = 251389709
BaseRepresentation
bin11111010010101101111010
3120102202120122
4133102231322
54100000010
6451453242
7126503555
oct37225572
916382518
108203130
1146a3151
1228b7222
131912a30
14113769c
15ac0855
hex7d2b7a

8203130 has 32 divisors (see below), whose sum is σ = 16102800. Its totient is φ = 2990592.

The previous prime is 8203109. The next prime is 8203133. The reversal of 8203130 is 313028.

It can be written as a sum of positive squares in 8 ways, for example, as 177241 + 8025889 = 421^2 + 2833^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8203099 and 8203108.

It is not an unprimeable number, because it can be changed into a prime (8203133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11216 + ... + 11924.

Almost surely, 28203130 is an apocalyptic number.

8203130 is a deficient number, since it is larger than the sum of its proper divisors (7899670).

8203130 is a wasteful number, since it uses less digits than its factorization.

8203130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 8203130 is about 2864.1106822188. The cubic root of 8203130 is about 201.6786217290.

Adding to 8203130 its reverse (313028), we get a palindrome (8516158).

The spelling of 8203130 in words is "eight million, two hundred three thousand, one hundred thirty".

Divisors: 1 2 5 10 13 26 65 89 130 178 445 709 890 1157 1418 2314 3545 5785 7090 9217 11570 18434 46085 63101 92170 126202 315505 631010 820313 1640626 4101565 8203130