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82387315 = 5149110587
BaseRepresentation
bin1001110100100…
…10000101110011
312202000201011001
410322102011303
5132042343230
612101502431
72020165153
oct472220563
9182021131
1082387315
114256189a
1223711a17
13140b7bba
14ad28763
1573760ca
hex4e92173

82387315 has 8 divisors (see below), whose sum is σ = 99529200. Its totient is φ = 65466912.

The previous prime is 82387307. The next prime is 82387339. The reversal of 82387315 is 51378328.

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 82387315 - 23 = 82387307 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54549 + ... + 56038.

It is an arithmetic number, because the mean of its divisors is an integer number (12441150).

Almost surely, 282387315 is an apocalyptic number.

82387315 is a deficient number, since it is larger than the sum of its proper divisors (17141885).

82387315 is a wasteful number, since it uses less digits than its factorization.

82387315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110741.

The product of its digits is 40320, while the sum is 37.

The square root of 82387315 is about 9076.7458375786. The cubic root of 82387315 is about 435.1310918593.

The spelling of 82387315 in words is "eighty-two million, three hundred eighty-seven thousand, three hundred fifteen".

Divisors: 1 5 149 745 110587 552935 16477463 82387315