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7141028 = 221785257
BaseRepresentation
bin11011001111011010100100
3111102210122112
4123033122210
53312003103
6413020152
7114461216
oct33173244
914383575
107141028
114038184
122484658
13163047b
14d3c5b6
15960cd8
hex6cf6a4

7141028 has 6 divisors (see below), whose sum is σ = 12496806. Its totient is φ = 3570512.

The previous prime is 7141021. The next prime is 7141033. The reversal of 7141028 is 8201417.

It can be written as a sum of positive squares in only one way, i.e., 7139584 + 1444 = 2672^2 + 38^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7140994 and 7141012.

It is not an unprimeable number, because it can be changed into a prime (7141021) 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 as a sum of consecutive naturals, namely, 892625 + ... + 892632.

It is an arithmetic number, because the mean of its divisors is an integer number (2082801).

Almost surely, 27141028 is an apocalyptic number.

It is an amenable number.

7141028 is a deficient number, since it is larger than the sum of its proper divisors (5355778).

7141028 is a wasteful number, since it uses less digits than its factorization.

7141028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785261 (or 1785259 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 7141028 is about 2672.2701959196. The cubic root of 7141028 is about 192.5692380385.

The spelling of 7141028 in words is "seven million, one hundred forty-one thousand, twenty-eight".

Divisors: 1 2 4 1785257 3570514 7141028