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82212960 = 2535592903
BaseRepresentation
bin1001110011001…
…11100001100000
312201200211222110
410321213201200
5132021303320
612054035320
72015540634
oct471474140
9181624873
1082212960
11424528a5
1223648b40
131405672b
14acc0dc4
15733e5e0
hex4e67860

82212960 has 96 divisors (see below), whose sum is σ = 263450880. Its totient is φ = 21544448.

The previous prime is 82212919. The next prime is 82212967. The reversal of 82212960 is 6921228.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82212967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26869 + ... + 29771.

It is an arithmetic number, because the mean of its divisors is an integer number (2744280).

Almost surely, 282212960 is an apocalyptic number.

82212960 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82212960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131725440).

82212960 is an abundant number, since it is smaller than the sum of its proper divisors (181237920).

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

82212960 is a wasteful number, since it uses less digits than its factorization.

82212960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 82212960 is about 9067.1362623488. The cubic root of 82212960 is about 434.8239213382.

The spelling of 82212960 in words is "eighty-two million, two hundred twelve thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 59 60 80 96 118 120 160 177 236 240 295 354 472 480 590 708 885 944 1180 1416 1770 1888 2360 2832 2903 3540 4720 5664 5806 7080 8709 9440 11612 14160 14515 17418 23224 28320 29030 34836 43545 46448 58060 69672 87090 92896 116120 139344 171277 174180 232240 278688 342554 348360 464480 513831 685108 696720 856385 1027662 1370216 1393440 1712770 2055324 2569155 2740432 3425540 4110648 5138310 5480864 6851080 8221296 10276620 13702160 16442592 20553240 27404320 41106480 82212960