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82430880 = 2535724533
BaseRepresentation
bin1001110100111…
…00101110100000
312202002220220120
410322130232200
5132100242010
612102440240
72020436160
oct472345640
9182086816
1082430880
11425915a4
1223733080
131410198c
14ad3a5a0
157383e70
hex4e9cba0

82430880 has 96 divisors (see below), whose sum is σ = 296763264. Its totient is φ = 18840576.

The previous prime is 82430819. The next prime is 82430897. The reversal of 82430880 is 8803428.

It is a tau number, because it is divible by the number of its divisors (96).

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 15 ways as a sum of consecutive naturals, for example, 8907 + ... + 15626.

It is an arithmetic number, because the mean of its divisors is an integer number (3091284).

Almost surely, 282430880 is an apocalyptic number.

82430880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

82430880 is an abundant number, since it is smaller than the sum of its proper divisors (214332384).

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

82430880 is a wasteful number, since it uses less digits than its factorization.

82430880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24558 (or 24550 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 82430880 is about 9079.1453342261. The cubic root of 82430880 is about 435.2077749656.

The spelling of 82430880 in words is "eighty-two million, four hundred thirty thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 140 160 168 210 224 240 280 336 420 480 560 672 840 1120 1680 3360 24533 49066 73599 98132 122665 147198 171731 196264 245330 294396 343462 367995 392528 490660 515193 588792 686924 735990 785056 858655 981320 1030386 1177584 1373848 1471980 1717310 1962640 2060772 2355168 2575965 2747696 2943960 3434620 3925280 4121544 5151930 5495392 5887920 6869240 8243088 10303860 11775840 13738480 16486176 20607720 27476960 41215440 82430880