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7138130 = 2517199211
BaseRepresentation
bin11011001110101101010010
3111102122200012
4123032231102
53311410010
6412554522
7114446606
oct33165522
914378605
107138130
114035a8a
122482a42
13162c05c
14d3b506
15960005
hex6ceb52

7138130 has 32 divisors (see below), whose sum is σ = 13737600. Its totient is φ = 2661120.

The previous prime is 7138123. The next prime is 7138169. The reversal of 7138130 is 318317.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7138096 and 7138105.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 33725 + ... + 33935.

It is an arithmetic number, because the mean of its divisors is an integer number (429300).

Almost surely, 27138130 is an apocalyptic number.

7138130 is a deficient number, since it is larger than the sum of its proper divisors (6599470).

7138130 is a wasteful number, since it uses less digits than its factorization.

7138130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 7138130 is about 2671.7279053077. The cubic root of 7138130 is about 192.5431847792.

The spelling of 7138130 in words is "seven million, one hundred thirty-eight thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 199 211 398 422 995 1055 1990 2110 3383 3587 6766 7174 16915 17935 33830 35870 41989 83978 209945 419890 713813 1427626 3569065 7138130