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82374438 = 2344930577
BaseRepresentation
bin1001110100011…
…10111100100110
312202000001111010
410322032330212
5132041440223
612101323050
72020112466
oct472167446
9182001433
1082374438
1142553153
1223706486
13140b2093
14ad23ba6
157372393
hex4e8ef26

82374438 has 16 divisors (see below), whose sum is σ = 165121200. Its totient is φ = 27396096.

The previous prime is 82374433. The next prime is 82374473. The reversal of 82374438 is 83447328.

It is a junction number, because it is equal to n+sod(n) for n = 82374396 and 82374405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82374433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12595 + ... + 17982.

It is an arithmetic number, because the mean of its divisors is an integer number (10320075).

Almost surely, 282374438 is an apocalyptic number.

82374438 is an abundant number, since it is smaller than the sum of its proper divisors (82746762).

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

82374438 is a wasteful number, since it uses less digits than its factorization.

82374438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31031.

The product of its digits is 129024, while the sum is 39.

The square root of 82374438 is about 9076.0364697372. The cubic root of 82374438 is about 435.1084205900.

The spelling of 82374438 in words is "eighty-two million, three hundred seventy-four thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 449 898 1347 2694 30577 61154 91731 183462 13729073 27458146 41187219 82374438