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82082664 = 23321767061
BaseRepresentation
bin1001110010001…
…11101101101000
312201110020020200
410321013231220
5132003121124
612051152200
72014456026
oct471075550
9181406220
1082082664
1142373a14
12235a5660
131400c331
14ac89716
157315bc9
hex4e47b68

82082664 has 48 divisors (see below), whose sum is σ = 235387620. Its totient is φ = 25751040.

The previous prime is 82082621. The next prime is 82082669. The reversal of 82082664 is 46628028.

It can be written as a sum of positive squares in 2 ways, for example, as 81757764 + 324900 = 9042^2 + 570^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (82082669) 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, 32307 + ... + 34754.

Almost surely, 282082664 is an apocalyptic number.

It is an amenable number.

82082664 is an abundant number, since it is smaller than the sum of its proper divisors (153304956).

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

82082664 is a wasteful number, since it uses less digits than its factorization.

82082664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67090 (or 67083 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 82082664 is about 9059.9483442236. The cubic root of 82082664 is about 434.5940882537.

The spelling of 82082664 in words is "eighty-two million, eighty-two thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 34 36 51 68 72 102 136 153 204 306 408 612 1224 67061 134122 201183 268244 402366 536488 603549 804732 1140037 1207098 1609464 2280074 2414196 3420111 4560148 4828392 6840222 9120296 10260333 13680444 20520666 27360888 41041332 82082664