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82357284 = 2236863107
BaseRepresentation
bin1001110100010…
…10110000100100
312201222011221210
410322022300210
5132040413114
612101111420
72020011462
oct472126044
9181864853
1082357284
1142541279
12236b8570
13140a7329
14ad1b832
15736c259
hex4e8ac24

82357284 has 12 divisors (see below), whose sum is σ = 192167024. Its totient is φ = 27452424.

The previous prime is 82357279. The next prime is 82357313. The reversal of 82357284 is 48275328.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3431542 + ... + 3431565.

Almost surely, 282357284 is an apocalyptic number.

It is an amenable number.

82357284 is an abundant number, since it is smaller than the sum of its proper divisors (109809740).

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

82357284 is a wasteful number, since it uses less digits than its factorization.

82357284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6863114 (or 6863112 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 82357284 is about 9075.0914044984. The cubic root of 82357284 is about 435.0782155564.

The spelling of 82357284 in words is "eighty-two million, three hundred fifty-seven thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 6863107 13726214 20589321 27452428 41178642 82357284