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82531514 = 21310213109
BaseRepresentation
bin1001110101101…
…01010010111010
312202022000221202
410322311102322
5132112002024
612104534202
72021335442
oct472652272
9182260852
1082531514
114265016a
1223781362
1314138720
14ad65122
1573a3bae
hex4eb54ba

82531514 has 16 divisors (see below), whose sum is σ = 133493640. Its totient is φ = 38041920.

The previous prime is 82531513. The next prime is 82531523. The reversal of 82531514 is 41513528.

It can be written as a sum of positive squares in 4 ways, for example, as 46471489 + 36060025 = 6817^2 + 6005^2 .

It is a super-2 number, since 2×825315142 = 13622901606264392, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82531511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24992 + ... + 28100.

Almost surely, 282531514 is an apocalyptic number.

82531514 is a deficient number, since it is larger than the sum of its proper divisors (50962126).

82531514 is a wasteful number, since it uses less digits than its factorization.

82531514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145.

The product of its digits is 4800, while the sum is 29.

The square root of 82531514 is about 9084.6856852618. The cubic root of 82531514 is about 435.3848076850.

The spelling of 82531514 in words is "eighty-two million, five hundred thirty-one thousand, five hundred fourteen".

Divisors: 1 2 13 26 1021 2042 3109 6218 13273 26546 40417 80834 3174289 6348578 41265757 82531514