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7023140 = 225351157
BaseRepresentation
bin11010110010101000100100
3111012210221022
4122302220210
53244220030
6410310312
7113460425
oct32625044
914183838
107023140
113a67653
122428398
1315bb907
14d0b64c
1593ade5
hex6b2a24

7023140 has 12 divisors (see below), whose sum is σ = 14748636. Its totient is φ = 2809248.

The previous prime is 7023139. The next prime is 7023151. The reversal of 7023140 is 413207.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2262016 + 4761124 = 1504^2 + 2182^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175559 + ... + 175598.

It is an arithmetic number, because the mean of its divisors is an integer number (1229053).

Almost surely, 27023140 is an apocalyptic number.

It is an amenable number.

7023140 is an abundant number, since it is smaller than the sum of its proper divisors (7725496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7023140 is a wasteful number, since it uses less digits than its factorization.

7023140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351166 (or 351164 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 7023140 is about 2650.1207519658. The cubic root of 7023140 is about 191.5036732338.

Adding to 7023140 its reverse (413207), we get a palindrome (7436347).

The spelling of 7023140 in words is "seven million, twenty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 351157 702314 1404628 1755785 3511570 7023140