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378283823 = 1069353867
BaseRepresentation
bin10110100011000…
…010011100101111
3222100210210211222
4112203002130233
51233320040243
6101311533555
712242234201
oct2643023457
9870723758
10378283823
11184593265
12a682a2bb
13604a9ca8
1438350771
1523324168
hex168c272f

378283823 has 4 divisors (see below), whose sum is σ = 378638760. Its totient is φ = 377928888.

The previous prime is 378283817. The next prime is 378283849. The reversal of 378283823 is 328382873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 378283823 - 216 = 378218287 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 (378283123) 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, 175865 + ... + 178002.

It is an arithmetic number, because the mean of its divisors is an integer number (94659690).

Almost surely, 2378283823 is an apocalyptic number.

378283823 is a deficient number, since it is larger than the sum of its proper divisors (354937).

378283823 is a wasteful number, since it uses less digits than its factorization.

378283823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354936.

The product of its digits is 387072, while the sum is 44.

The square root of 378283823 is about 19449.5198655391. The cubic root of 378283823 is about 723.2236005941.

The spelling of 378283823 in words is "three hundred seventy-eight million, two hundred eighty-three thousand, eight hundred twenty-three".

Divisors: 1 1069 353867 378283823