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8040404 = 226613041
BaseRepresentation
bin11110101010111111010100
3120010111100202
4132222333110
54024243104
6444200032
7125225261
oct36527724
916114322
108040404
1145a1969
122839018
131886948
1410d4268
15a8c51e
hex7aafd4

8040404 has 12 divisors (see below), whose sum is σ = 14096628. Its totient is φ = 4012800.

The previous prime is 8040391. The next prime is 8040407. The reversal of 8040404 is 4040408.

It can be written as a sum of positive squares in 2 ways, for example, as 7300804 + 739600 = 2702^2 + 860^2 .

8040404 is a modest number, since divided by 40404 gives 8 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8040407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124 + ... + 4164.

It is an arithmetic number, because the mean of its divisors is an integer number (1174719).

Almost surely, 28040404 is an apocalyptic number.

It is an amenable number.

8040404 is a deficient number, since it is larger than the sum of its proper divisors (6056224).

8040404 is a wasteful number, since it uses less digits than its factorization.

8040404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706 (or 3704 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 8040404 is about 2835.5606147639. The cubic root of 8040404 is about 200.3361347507.

The spelling of 8040404 in words is "eight million, forty thousand, four hundred four".

Divisors: 1 2 4 661 1322 2644 3041 6082 12164 2010101 4020202 8040404