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131011315 = 529998737
BaseRepresentation
bin1111100111100…
…01001011110011
3100010112001201221
413303301023303
5232014330230
621000005511
73150402121
oct763611363
9303461657
10131011315
1167a52816
1237a60897
13211b0bb6
1413584911
15b77d27a
hex7cf12f3

131011315 has 8 divisors (see below), whose sum is σ = 157284000. Its totient is φ = 104762112.

The previous prime is 131011313. The next prime is 131011337. The reversal of 131011315 is 513110131.

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

It is a cyclic number.

It is not a de Polignac number, because 131011315 - 21 = 131011313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131011313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10627 + ... + 19363.

It is an arithmetic number, because the mean of its divisors is an integer number (19660500).

Almost surely, 2131011315 is an apocalyptic number.

131011315 is a deficient number, since it is larger than the sum of its proper divisors (26272685).

131011315 is an equidigital number, since it uses as much as digits as its factorization.

131011315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11741.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 131011315 is about 11446.0174296565. The cubic root of 131011315 is about 507.8899298073.

Adding to 131011315 its reverse (513110131), we get a palindrome (644121446).

The spelling of 131011315 in words is "one hundred thirty-one million, eleven thousand, three hundred fifteen".

Divisors: 1 5 2999 8737 14995 43685 26202263 131011315