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130722932 = 2247968227
BaseRepresentation
bin1111100101010…
…10110001110100
3100002222102011002
413302222301310
5231431113212
620545502432
73145061264
oct762526164
9302872132
10130722932
116787608a
1237941a18
132110c862
141350b7a4
15b722ac2
hex7caac74

130722932 has 12 divisors (see below), whose sum is σ = 229246080. Its totient is φ = 65224056.

The previous prime is 130722931. The next prime is 130722947. The reversal of 130722932 is 239227031.

It is a junction number, because it is equal to n+sod(n) for n = 130722895 and 130722904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130722931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32198 + ... + 36029.

It is an arithmetic number, because the mean of its divisors is an integer number (19103840).

Almost surely, 2130722932 is an apocalyptic number.

It is an amenable number.

130722932 is a deficient number, since it is larger than the sum of its proper divisors (98523148).

130722932 is a wasteful number, since it uses less digits than its factorization.

130722932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68710 (or 68708 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 130722932 is about 11433.4129637655. The cubic root of 130722932 is about 507.5169991151.

Adding to 130722932 its reverse (239227031), we get a palindrome (369949963).

The spelling of 130722932 in words is "one hundred thirty million, seven hundred twenty-two thousand, nine hundred thirty-two".

Divisors: 1 2 4 479 958 1916 68227 136454 272908 32680733 65361466 130722932