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8006378 = 229138041
BaseRepresentation
bin11110100010101011101010
3120001202200112
4132202223222
54022201003
6443334322
7125024132
oct36425352
916052615
108006378
114579346
1228213a2
131874303
1410c5ac2
15a823d8
hex7a2aea

8006378 has 8 divisors (see below), whose sum is σ = 12423780. Its totient is φ = 3865120.

The previous prime is 8006363. The next prime is 8006387. The reversal of 8006378 is 8736008.

It can be written as a sum of positive squares in 2 ways, for example, as 7059649 + 946729 = 2657^2 + 973^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 68963 + ... + 69078.

Almost surely, 28006378 is an apocalyptic number.

8006378 is a deficient number, since it is larger than the sum of its proper divisors (4417402).

8006378 is a wasteful number, since it uses less digits than its factorization.

8006378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138072.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 8006378 is about 2829.5543818771. The cubic root of 8006378 is about 200.0531358816.

The spelling of 8006378 in words is "eight million, six thousand, three hundred seventy-eight".

Divisors: 1 2 29 58 138041 276082 4003189 8006378