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131103133 = 7175971263
BaseRepresentation
bin1111101000001…
…11100110011101
3100010200201200121
413310013212131
5232030300013
621001554541
73151233610
oct764074635
9303621617
10131103133
11680057a7
1237aa5a51
1321213925
14135aa177
15b79a58d
hex7d0799d

131103133 has 32 divisors (see below), whose sum is σ = 164229120. Its totient is φ = 102117120.

The previous prime is 131103127. The next prime is 131103149. The reversal of 131103133 is 331301131.

It is not a de Polignac number, because 131103133 - 25 = 131103101 is a prime.

It is a Duffinian number.

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 31 ways as a sum of consecutive naturals, for example, 498360 + ... + 498622.

It is an arithmetic number, because the mean of its divisors is an integer number (5132160).

Almost surely, 2131103133 is an apocalyptic number.

It is an amenable number.

131103133 is a deficient number, since it is larger than the sum of its proper divisors (33125987).

131103133 is a wasteful number, since it uses less digits than its factorization.

131103133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 131103133 is about 11450.0276418880. The cubic root of 131103133 is about 508.0085519981.

Adding to 131103133 its reverse (331301131), we get a palindrome (462404264).

The spelling of 131103133 in words is "one hundred thirty-one million, one hundred three thousand, one hundred thirty-three".

Divisors: 1 7 17 59 71 119 263 413 497 1003 1207 1841 4189 4471 7021 8449 15517 18673 29323 31297 71213 108619 130711 263789 317441 498491 1101707 1846523 2222087 7711949 18729019 131103133