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7141828 = 221785457
BaseRepresentation
bin11011001111100111000100
3111102211202011
4123033213010
53312014303
6413024004
7114463441
oct33174704
914384664
107141828
114038841
122485004
131630945
14d3c9c8
1596116d
hex6cf9c4

7141828 has 6 divisors (see below), whose sum is σ = 12498206. Its totient is φ = 3570912.

The previous prime is 7141807. The next prime is 7141829. The reversal of 7141828 is 8281417.

It can be written as a sum of positive squares in only one way, i.e., 4072324 + 3069504 = 2018^2 + 1752^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7141828.

It is not an unprimeable number, because it can be changed into a prime (7141829) 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, 892725 + ... + 892732.

Almost surely, 27141828 is an apocalyptic number.

It is an amenable number.

7141828 is a deficient number, since it is larger than the sum of its proper divisors (5356378).

7141828 is a wasteful number, since it uses less digits than its factorization.

7141828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785461 (or 1785459 counting only the distinct ones).

The product of its digits is 3584, while the sum is 31.

The square root of 7141828 is about 2672.4198771900. The cubic root of 7141828 is about 192.5764288630.

The spelling of 7141828 in words is "seven million, one hundred forty-one thousand, eight hundred twenty-eight".

Divisors: 1 2 4 1785457 3570914 7141828