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131300351 = 7213206123
BaseRepresentation
bin1111101001101…
…11101111111111
3100011001202012222
413310313233333
5232103102401
621010115555
73153014600
oct764675777
9304052188
10131300351
116812a996
1237b7bbbb
1321282620
141361bda7
15b7d8c1b
hex7d37bff

131300351 has 12 divisors (see below), whose sum is σ = 164486952. Its totient is φ = 103885488.

The previous prime is 131300329. The next prime is 131300357. The reversal of 131300351 is 153003131.

It is a de Polignac number, because none of the positive numbers 2k-131300351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131300357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102425 + ... + 103698.

It is an arithmetic number, because the mean of its divisors is an integer number (13707246).

Almost surely, 2131300351 is an apocalyptic number.

131300351 is a deficient number, since it is larger than the sum of its proper divisors (33186601).

131300351 is a wasteful number, since it uses less digits than its factorization.

131300351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206150 (or 206143 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 131300351 is about 11458.6365244736. The cubic root of 131300351 is about 508.2631562235.

Adding to 131300351 its reverse (153003131), we get a palindrome (284303482).

The spelling of 131300351 in words is "one hundred thirty-one million, three hundred thousand, three hundred fifty-one".

Divisors: 1 7 13 49 91 637 206123 1442861 2679599 10100027 18757193 131300351