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130581950 = 2522611639
BaseRepresentation
bin1111100100010…
…00010110111110
3100002201020202112
413302020112332
5231412110300
620542454022
73143633252
oct762102676
9302636675
10130581950
116778a174
1237894312
1321090635
14134b2262
15b6e5e35
hex7c885be

130581950 has 12 divisors (see below), whose sum is σ = 242882520. Its totient is φ = 52232760.

The previous prime is 130581949. The next prime is 130581967. The reversal of 130581950 is 59185031.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1305770 + ... + 1305869.

It is an arithmetic number, because the mean of its divisors is an integer number (20240210).

Almost surely, 2130581950 is an apocalyptic number.

130581950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130581950 is a deficient number, since it is larger than the sum of its proper divisors (112300570).

130581950 is a wasteful number, since it uses less digits than its factorization.

130581950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611651 (or 2611646 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 130581950 is about 11427.2459499216. The cubic root of 130581950 is about 507.3344845966.

The spelling of 130581950 in words is "one hundred thirty million, five hundred eighty-one thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 2611639 5223278 13058195 26116390 65290975 130581950