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130220508 = 22311986519
BaseRepresentation
bin1111100001100…
…00000111011100
3100002000212221210
413300300013130
5231314024013
620531024420
73140566425
oct760600734
9302025853
10130220508
1167562660
123773b110
1320c94c72
141341a64c
15b673cc3
hex7c301dc

130220508 has 24 divisors (see below), whose sum is σ = 331470720. Its totient is φ = 39460720.

The previous prime is 130220449. The next prime is 130220513. The reversal of 130220508 is 805022031.

It is a congruent 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, 493128 + ... + 493391.

It is an arithmetic number, because the mean of its divisors is an integer number (13811280).

Almost surely, 2130220508 is an apocalyptic number.

It is an amenable number.

130220508 is an abundant number, since it is smaller than the sum of its proper divisors (201250212).

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

130220508 is a wasteful number, since it uses less digits than its factorization.

130220508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986537 (or 986535 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 130220508 is about 11411.4200693866. The cubic root of 130220508 is about 506.8659628789.

Adding to 130220508 its reverse (805022031), we get a palindrome (935242539).

The spelling of 130220508 in words is "one hundred thirty million, two hundred twenty thousand, five hundred eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 986519 1973038 2959557 3946076 5919114 10851709 11838228 21703418 32555127 43406836 65110254 130220508