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83371120 = 2457533
BaseRepresentation
bin1001111100000…
…10010001110000
312210212200200021
410332002101300
5132320333440
612134533224
72031433330
oct476022160
9183780607
1083371120
1143073a58
1223b07214
1314370931
14b1030c0
1574bc84a
hex4f82470

83371120 has 80 divisors (see below), whose sum is σ = 225789120. Its totient is φ = 28045056.

The previous prime is 83371117. The next prime is 83371129. The reversal of 83371120 is 2117338.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83371129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1573014 + ... + 1573066.

It is an arithmetic number, because the mean of its divisors is an integer number (2822364).

Almost surely, 283371120 is an apocalyptic number.

83371120 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 83371120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112894560).

83371120 is an abundant number, since it is smaller than the sum of its proper divisors (142418000).

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

83371120 is an frugal number, since it uses more digits than its factorization.

83371120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 83371120 is about 9130.7787181598. The cubic root of 83371120 is about 436.8562417797.

Adding to 83371120 its reverse (2117338), we get a palindrome (85488458).

The spelling of 83371120 in words is "eighty-three million, three hundred seventy-one thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 53 56 70 80 106 112 140 212 265 280 371 424 530 560 742 848 1060 1484 1855 2120 2809 2968 3710 4240 5618 5936 7420 11236 14045 14840 19663 22472 28090 29680 39326 44944 56180 78652 98315 112360 148877 157304 196630 224720 297754 314608 393260 595508 744385 786520 1042139 1191016 1488770 1573040 2084278 2382032 2977540 4168556 5210695 5955080 8337112 10421390 11910160 16674224 20842780 41685560 83371120