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130731266 = 2431520131
BaseRepresentation
bin1111100101011…
…00110100000010
3100002222211120202
413302230310002
5231431400031
620550005202
73145124501
oct762546402
9302884522
10130731266
1167881376
1237946802
13211135a3
1413510838
15b7252cb
hex7cacd02

130731266 has 8 divisors (see below), whose sum is σ = 200657424. Its totient is φ = 63845460.

The previous prime is 130731239. The next prime is 130731277. The reversal of 130731266 is 662137031.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 759980 + ... + 760151.

It is an arithmetic number, because the mean of its divisors is an integer number (25082178).

Almost surely, 2130731266 is an apocalyptic number.

130731266 is a deficient number, since it is larger than the sum of its proper divisors (69926158).

130731266 is a wasteful number, since it uses less digits than its factorization.

130731266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520176.

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

The square root of 130731266 is about 11433.7774160598. Note that the first 3 decimals coincide. The cubic root of 130731266 is about 507.5277841568.

Adding to 130731266 its reverse (662137031), we get a palindrome (792868297).

The spelling of 130731266 in words is "one hundred thirty million, seven hundred thirty-one thousand, two hundred sixty-six".

Divisors: 1 2 43 86 1520131 3040262 65365633 130731266