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7896404 = 2214913249
BaseRepresentation
bin11110000111110101010100
3112212011211102
4132013311110
54010141104
6441125232
7124055405
oct36076524
915764742
107896404
11450375a
122789818
131836239
1410979ac
15a5ea1e
hex787d54

7896404 has 12 divisors (see below), whose sum is σ = 13912500. Its totient is φ = 3921408.

The previous prime is 7896401. The next prime is 7896409. The reversal of 7896404 is 4046987.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1444804 + 6451600 = 1202^2 + 2540^2 .

It is a super-2 number, since 2×78964042 = 124706392262432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7896401) 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 3 ways as a sum of consecutive naturals, for example, 6029 + ... + 7220.

It is an arithmetic number, because the mean of its divisors is an integer number (1159375).

Almost surely, 27896404 is an apocalyptic number.

It is an amenable number.

7896404 is a deficient number, since it is larger than the sum of its proper divisors (6016096).

7896404 is a wasteful number, since it uses less digits than its factorization.

7896404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13402 (or 13400 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 7896404 is about 2810.0540920061. The cubic root of 7896404 is about 199.1329465233.

The spelling of 7896404 in words is "seven million, eight hundred ninety-six thousand, four hundred four".

Divisors: 1 2 4 149 298 596 13249 26498 52996 1974101 3948202 7896404