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131304611 = 1914946381
BaseRepresentation
bin1111101001110…
…00110010100011
3100011001222001202
413310320302203
5232103221421
621010151415
73153033164
oct764706243
9304058052
10131304611
1168133109
1237b8256b
1321284549
141361d76b
15b7da10b
hex7d38ca3

131304611 has 8 divisors (see below), whose sum is σ = 139146000. Its totient is φ = 123556320.

The previous prime is 131304599. The next prime is 131304647. The reversal of 131304611 is 116403131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131304611 is a prime.

It is a super-2 number, since 2×1313046112 = 34481801739722642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131309611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20360 + ... + 26021.

It is an arithmetic number, because the mean of its divisors is an integer number (17393250).

Almost surely, 2131304611 is an apocalyptic number.

131304611 is a deficient number, since it is larger than the sum of its proper divisors (7841389).

131304611 is a wasteful number, since it uses less digits than its factorization.

131304611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46549.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 131304611 is about 11458.8224089563. The cubic root of 131304611 is about 508.2686529786.

Adding to 131304611 its reverse (116403131), we get a palindrome (247707742).

The spelling of 131304611 in words is "one hundred thirty-one million, three hundred four thousand, six hundred eleven".

Divisors: 1 19 149 2831 46381 881239 6910769 131304611