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82369937 = 136336149
BaseRepresentation
bin1001110100011…
…01110110010001
312201222211022102
410322031312101
5132041314222
612101250145
72020063406
oct472156621
9181884272
1082369937
114254a831
1223703955
13140b0010
14ad222ad
157370d92
hex4e8dd91

82369937 has 4 divisors (see below), whose sum is σ = 88706100. Its totient is φ = 76033776.

The previous prime is 82369919. The next prime is 82369949. The reversal of 82369937 is 73996328.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16289296 + 66080641 = 4036^2 + 8129^2 .

It is not a de Polignac number, because 82369937 - 26 = 82369873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82369891 and 82369900.

It is not an unprimeable number, because it can be changed into a prime (82369907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3168062 + ... + 3168087.

It is an arithmetic number, because the mean of its divisors is an integer number (22176525).

Almost surely, 282369937 is an apocalyptic number.

It is an amenable number.

82369937 is a deficient number, since it is larger than the sum of its proper divisors (6336163).

82369937 is a wasteful number, since it uses less digits than its factorization.

82369937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336162.

The product of its digits is 489888, while the sum is 47.

The square root of 82369937 is about 9075.7885056892. The cubic root of 82369937 is about 435.1004955641.

The spelling of 82369937 in words is "eighty-two million, three hundred sixty-nine thousand, nine hundred thirty-seven".

Divisors: 1 13 6336149 82369937