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82745944 = 2331247229
BaseRepresentation
bin1001110111010…
…01101001011000
312202200221002121
410323221221120
5132140332234
612113311024
72023220551
oct473515130
9182627077
1082745944
1142787286
1223865474
13141b21c8
14adbd328
1573e74b4
hex4ee9a58

82745944 has 48 divisors (see below), whose sum is σ = 164440800. Its totient is φ = 39015360.

The previous prime is 82745939. The next prime is 82745959. The reversal of 82745944 is 44954728.

It is a super-2 number, since 2×827459442 = 13693782496902272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82745944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361222 + ... + 361450.

It is an arithmetic number, because the mean of its divisors is an integer number (3425850).

Almost surely, 282745944 is an apocalyptic number.

It is an amenable number.

82745944 is a deficient number, since it is larger than the sum of its proper divisors (81694856).

82745944 is a wasteful number, since it uses less digits than its factorization.

82745944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 309 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 82745944 is about 9096.4797586759. The cubic root of 82745944 is about 435.7615479222.

The spelling of 82745944 in words is "eighty-two million, seven hundred forty-five thousand, nine hundred forty-four".

Divisors: 1 2 4 8 31 47 62 94 124 188 229 248 376 458 916 961 1457 1832 1922 2914 3844 5828 7099 7688 10763 11656 14198 21526 28396 43052 45167 56792 86104 90334 180668 220069 333653 361336 440138 667306 880276 1334612 1760552 2669224 10343243 20686486 41372972 82745944