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131103303 = 31719713049
BaseRepresentation
bin1111101000001…
…11101001000111
3100010200201220220
413310013221013
5232030301203
621001555423
73151234242
oct764075107
9303621826
10131103303
1168005941
1237aa5b73
1321213a26
14135aa259
15b79a653
hex7d07a47

131103303 has 16 divisors (see below), whose sum is σ = 186040800. Its totient is φ = 81837056.

The previous prime is 131103299. The next prime is 131103311. The reversal of 131103303 is 303301131.

It is a cyclic number.

It is not a de Polignac number, because 131103303 - 22 = 131103299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131103103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3523 + ... + 16571.

It is an arithmetic number, because the mean of its divisors is an integer number (11627550).

Almost surely, 2131103303 is an apocalyptic number.

131103303 is a deficient number, since it is larger than the sum of its proper divisors (54937497).

131103303 is a wasteful number, since it uses less digits than its factorization.

131103303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13266.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 131103303 is about 11450.0350654485. The cubic root of 131103303 is about 508.0087715744.

Adding to 131103303 its reverse (303301131), we get a palindrome (434404434).

The spelling of 131103303 in words is "one hundred thirty-one million, one hundred three thousand, three hundred three".

Divisors: 1 3 17 51 197 591 3349 10047 13049 39147 221833 665499 2570653 7711959 43701101 131103303