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130213250 = 253520853
BaseRepresentation
bin1111100001011…
…10010110000010
3100002000111222222
413300232112002
5231313311000
620530531042
73140536316
oct760562602
9302014888
10130213250
1167558162
1237736a82
1320c9187b
1413417b46
15b671a85
hex7c2e582

130213250 has 16 divisors (see below), whose sum is σ = 243759672. Its totient is φ = 52085200.

The previous prime is 130213241. The next prime is 130213273. The reversal of 130213250 is 52312031.

It can be written as a sum of positive squares in 4 ways, for example, as 75290329 + 54922921 = 8677^2 + 7411^2 .

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, 260177 + ... + 260676.

Almost surely, 2130213250 is an apocalyptic number.

130213250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130213250 is a deficient number, since it is larger than the sum of its proper divisors (113546422).

130213250 is an equidigital number, since it uses as much as digits as its factorization.

130213250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520870 (or 520860 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 130213250 is about 11411.1020501966. The cubic root of 130213250 is about 506.8565457716.

Adding to 130213250 its reverse (52312031), we get a palindrome (182525281).

The spelling of 130213250 in words is "one hundred thirty million, two hundred thirteen thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 520853 1041706 2604265 5208530 13021325 26042650 65106625 130213250