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82349839 = 11131035591
BaseRepresentation
bin1001110100010…
…00111100001111
312201221210202001
410322020330033
5132040143324
612101013131
72016650665
oct472107417
9181853661
1082349839
1142536720
12236b41a7
13140a3b20
14ad18c35
157369e44
hex4e88f0f

82349839 has 16 divisors (see below), whose sum is σ = 97703424. Its totient is φ = 68421600.

The previous prime is 82349833. The next prime is 82349843. The reversal of 82349839 is 93894328.

It is not a de Polignac number, because 82349839 - 27 = 82349711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82349833) 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, 11934 + ... + 17524.

It is an arithmetic number, because the mean of its divisors is an integer number (6106464).

Almost surely, 282349839 is an apocalyptic number.

82349839 is a deficient number, since it is larger than the sum of its proper divisors (15353585).

82349839 is a wasteful number, since it uses less digits than its factorization.

82349839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718.

The product of its digits is 373248, while the sum is 46.

The square root of 82349839 is about 9074.6812065218. The cubic root of 82349839 is about 435.0651049778.

The spelling of 82349839 in words is "eighty-two million, three hundred forty-nine thousand, eight hundred thirty-nine".

Divisors: 1 11 13 103 143 1133 1339 5591 14729 61501 72683 575873 799513 6334603 7486349 82349839