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7040169 = 33260747
BaseRepresentation
bin11010110110110010101001
3111020200022000
4122312302221
53300241134
6410521213
7113561163
oct32666251
914220260
107040169
113a79424
122436209
1315c65a6
14d13933
15940e99
hex6b6ca9

7040169 has 8 divisors (see below), whose sum is σ = 10429920. Its totient is φ = 4693428.

The previous prime is 7040129. The next prime is 7040171. The reversal of 7040169 is 9610407.

It is not a de Polignac number, because 7040169 - 27 = 7040041 is a prime.

It is a super-2 number, since 2×70401692 = 99127959097122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 260747 = 7040169 / (7 + 0 + 4 + 0 + 1 + 6 + 9).

It is not an unprimeable number, because it can be changed into a prime (7040129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130347 + ... + 130400.

It is an arithmetic number, because the mean of its divisors is an integer number (1303740).

Almost surely, 27040169 is an apocalyptic number.

It is an amenable number.

7040169 is a deficient number, since it is larger than the sum of its proper divisors (3389751).

7040169 is a wasteful number, since it uses less digits than its factorization.

7040169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260756 (or 260750 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 7040169 is about 2653.3316792290. The cubic root of 7040169 is about 191.6583278876.

The spelling of 7040169 in words is "seven million, forty thousand, one hundred sixty-nine".

Divisors: 1 3 9 27 260747 782241 2346723 7040169