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85624080 = 24351971811
BaseRepresentation
bin1010001101010…
…00010100010000
312222010011011020
411012220110100
5133404432310
612255115440
72056535613
oct506502420
9188104136
1085624080
1144372703
1224812b80
131497c249
14b52c17a
1577b5170
hex51a8510

85624080 has 80 divisors (see below), whose sum is σ = 266929344. Its totient is φ = 22704640.

The previous prime is 85624079. The next prime is 85624081. The reversal of 85624080 is 8042658.

It is an interprime number because it is at equal distance from previous prime (85624079) and next prime (85624081).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (85624081) 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, 46375 + ... + 48185.

Almost surely, 285624080 is an apocalyptic number.

85624080 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 85624080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133464672).

85624080 is an abundant number, since it is smaller than the sum of its proper divisors (181305264).

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

85624080 is a wasteful number, since it uses less digits than its factorization.

85624080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024 (or 2018 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 85624080 is about 9253.3280499505. The cubic root of 85624080 is about 440.7564123905.

The spelling of 85624080 in words is "eighty-five million, six hundred twenty-four thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 197 240 394 591 788 985 1182 1576 1811 1970 2364 2955 3152 3622 3940 4728 5433 5910 7244 7880 9055 9456 10866 11820 14488 15760 18110 21732 23640 27165 28976 36220 43464 47280 54330 72440 86928 108660 144880 217320 356767 434640 713534 1070301 1427068 1783835 2140602 2854136 3567670 4281204 5351505 5708272 7135340 8562408 10703010 14270680 17124816 21406020 28541360 42812040 85624080