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83080284 = 22372229617
BaseRepresentation
bin1001111001110…
…11010001011100
312210022220201120
410330323101130
5132232032114
612124410540
72026112400
oct474732134
9183286646
1083080284
11429954a1
12239a6a50
131429b441
14b069100
1574615a9
hex4f3b45c

83080284 has 72 divisors (see below), whose sum is σ = 226855440. Its totient is φ = 23595264.

The previous prime is 83080253. The next prime is 83080289. The reversal of 83080284 is 48208038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83080289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134344 + ... + 134960.

It is an arithmetic number, because the mean of its divisors is an integer number (3150770).

Almost surely, 283080284 is an apocalyptic number.

83080284 is a gapful number since it is divisible by the number (84) 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 83080284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113427720).

83080284 is an abundant number, since it is smaller than the sum of its proper divisors (143775156).

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

83080284 is a wasteful number, since it uses less digits than its factorization.

83080284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 858 counting only the distinct ones).

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

The square root of 83080284 is about 9114.8386710901. The cubic root of 83080284 is about 436.3476661927.

The spelling of 83080284 in words is "eighty-three million, eighty thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 229 294 458 588 617 687 916 1234 1374 1603 1851 2468 2748 3206 3702 4319 4809 6412 7404 8638 9618 11221 12957 17276 19236 22442 25914 30233 33663 44884 51828 60466 67326 90699 120932 134652 141293 181398 282586 362796 423879 565172 847758 989051 1695516 1978102 2967153 3956204 5934306 6923357 11868612 13846714 20770071 27693428 41540142 83080284