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8140041 = 337133313
BaseRepresentation
bin11111000011010100001001
3120022120001000
4133003110021
54040440131
6450245213
7126121620
oct37032411
916276030
108140041
11465a808
122886809
1318c00c0
14111c6b7
15aabce6
hex7c3509

8140041 has 32 divisors (see below), whose sum is σ = 14846720. Its totient is φ = 4292352.

The previous prime is 8140009. The next prime is 8140043. The reversal of 8140041 is 1400418.

It is not a de Polignac number, because 8140041 - 25 = 8140009 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8139996 and 8140023.

It is not an unprimeable number, because it can be changed into a prime (8140043) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 801 + ... + 4113.

It is an arithmetic number, because the mean of its divisors is an integer number (463960).

Almost surely, 28140041 is an apocalyptic number.

It is an amenable number.

8140041 is a deficient number, since it is larger than the sum of its proper divisors (6706679).

8140041 is a wasteful number, since it uses less digits than its factorization.

8140041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342 (or 3336 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 8140041 is about 2853.0757087747. The cubic root of 8140041 is about 201.1602642513.

Adding to 8140041 its reverse (1400418), we get a palindrome (9540459).

The spelling of 8140041 in words is "eight million, one hundred forty thousand, forty-one".

Divisors: 1 3 7 9 13 21 27 39 63 91 117 189 273 351 819 2457 3313 9939 23191 29817 43069 69573 89451 129207 208719 301483 387621 626157 904449 1162863 2713347 8140041