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82512752 = 247736721
BaseRepresentation
bin1001110101100…
…00101101110000
312202021002012212
410322300231300
5132110402002
612104311252
72021226650
oct472605560
9182232185
1082512752
1142638063
1223772528
131413001a
14ad5c360
15739d352
hex4eb0b70

82512752 has 20 divisors (see below), whose sum is σ = 182707056. Its totient is φ = 35362560.

The previous prime is 82512751. The next prime is 82512761. The reversal of 82512752 is 25721528.

It is a happy number.

It is a super-2 number, since 2×825127522 = 13616708485227008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82512751) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 368249 + ... + 368472.

Almost surely, 282512752 is an apocalyptic number.

It is an amenable number.

82512752 is an abundant number, since it is smaller than the sum of its proper divisors (100194304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82512752 is a wasteful number, since it uses less digits than its factorization.

82512752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736736 (or 736730 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 82512752 is about 9083.6530096652. The cubic root of 82512752 is about 435.3518129802.

The spelling of 82512752 in words is "eighty-two million, five hundred twelve thousand, seven hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 736721 1473442 2946884 5157047 5893768 10314094 11787536 20628188 41256376 82512752