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131303135 = 5317910723
BaseRepresentation
bin1111101001110…
…00011011011111
3100011001220001002
413310320123133
5232103200020
621010140515
73153025655
oct764703337
9304056032
10131303135
1168131a97
1237b8173b
1321283982
141361cdd5
15b7d9975
hex7d386df

131303135 has 16 divisors (see below), whose sum is σ = 164720640. Its totient is φ = 100357920.

The previous prime is 131303119. The next prime is 131303147. The reversal of 131303135 is 531303131.

It is not a de Polignac number, because 131303135 - 24 = 131303119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6884 + ... + 17606.

It is an arithmetic number, because the mean of its divisors is an integer number (10295040).

Almost surely, 2131303135 is an apocalyptic number.

131303135 is a deficient number, since it is larger than the sum of its proper divisors (33417505).

131303135 is a wasteful number, since it uses less digits than its factorization.

131303135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10838.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 131303135 is about 11458.7580042516. The cubic root of 131303135 is about 508.2667484825.

Adding to 131303135 its reverse (531303131), we get a palindrome (662606266).

The spelling of 131303135 in words is "one hundred thirty-one million, three hundred three thousand, one hundred thirty-five".

Divisors: 1 5 31 79 155 395 2449 10723 12245 53615 332413 847117 1662065 4235585 26260627 131303135