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378228079 = 1922986929
BaseRepresentation
bin10110100010110…
…100110101101111
3222100200222101101
4112202310311233
51233311244304
6101310423531
712241612525
oct2642646557
9870628341
10378228079
11184555399
12a6801ba7
136048a7c8
1438338315
15233128a4
hex168b4d6f

378228079 has 8 divisors (see below), whose sum is σ = 399878000. Its totient is φ = 356752512.

The previous prime is 378228061. The next prime is 378228089. The reversal of 378228079 is 970822873.

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

It is not a de Polignac number, because 378228079 - 217 = 378097007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378228089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39114 + ... + 47815.

It is an arithmetic number, because the mean of its divisors is an integer number (49984750).

Almost surely, 2378228079 is an apocalyptic number.

378228079 is a deficient number, since it is larger than the sum of its proper divisors (21649921).

378228079 is a wasteful number, since it uses less digits than its factorization.

378228079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87177.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 378228079 is about 19448.0867696542. The cubic root of 378228079 is about 723.1880740446.

The spelling of 378228079 in words is "three hundred seventy-eight million, two hundred twenty-eight thousand, seventy-nine".

Divisors: 1 19 229 4351 86929 1651651 19906741 378228079