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130204850 = 2523770381
BaseRepresentation
bin1111100001011…
…00010010110010
3100002000002110212
413300230102302
5231313023400
620530424122
73140502656
oct760542262
9302002425
10130204850
1167551916
1237732042
1320c8aab9
1413414a66
15b66e335
hex7c2c4b2

130204850 has 24 divisors (see below), whose sum is σ = 248729988. Its totient is φ = 50673600.

The previous prime is 130204849. The next prime is 130204861. The reversal of 130204850 is 58402031.

It can be written as a sum of positive squares in 6 ways, for example, as 63504961 + 66699889 = 7969^2 + 8167^2 .

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 11 ways as a sum of consecutive naturals, for example, 33341 + ... + 37040.

Almost surely, 2130204850 is an apocalyptic number.

130204850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130204850 is a deficient number, since it is larger than the sum of its proper divisors (118525138).

130204850 is a wasteful number, since it uses less digits than its factorization.

130204850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70430 (or 70425 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 130204850 is about 11410.7339816508. The cubic root of 130204850 is about 506.8456465056.

Adding to 130204850 its reverse (58402031), we get a palindrome (188606881).

The spelling of 130204850 in words is "one hundred thirty million, two hundred four thousand, eight hundred fifty".

Divisors: 1 2 5 10 25 37 50 74 185 370 925 1850 70381 140762 351905 703810 1759525 2604097 3519050 5208194 13020485 26040970 65102425 130204850