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130203424 = 2513312989
BaseRepresentation
bin1111100001010…
…11111100100000
3100002000000112001
413300223330200
5231313002144
620530413344
73140465551
oct760537440
9302000461
10130203424
116755083a
1237731254
1320c8a260
1413414328
15b66dbd4
hex7c2bf20

130203424 has 24 divisors (see below), whose sum is σ = 276057180. Its totient is φ = 60093696.

The previous prime is 130203373. The next prime is 130203431. The reversal of 130203424 is 424302031.

It can be written as a sum of positive squares in 2 ways, for example, as 128595600 + 1607824 = 11340^2 + 1268^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156079 + ... + 156910.

Almost surely, 2130203424 is an apocalyptic number.

It is an amenable number.

130203424 is an abundant number, since it is smaller than the sum of its proper divisors (145853756).

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

130203424 is a wasteful number, since it uses less digits than its factorization.

130203424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313012 (or 313004 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 130203424 is about 11410.6714964545. The cubic root of 130203424 is about 506.8437961789.

Adding to 130203424 its reverse (424302031), we get a palindrome (554505455).

The spelling of 130203424 in words is "one hundred thirty million, two hundred three thousand, four hundred twenty-four".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 312989 625978 1251956 2503912 4068857 5007824 8137714 10015648 16275428 32550856 65101712 130203424