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379728473 = 17145315373
BaseRepresentation
bin10110101000100…
…011001001011001
3222110112012112112
4112220203021121
51234202302343
6101402522105
712260432045
oct2650431131
9873465475
10379728473
1118538a693
12a7206335
1360894707
1438609025
152350c218
hex16a23259

379728473 has 8 divisors (see below), whose sum is σ = 402368328. Its totient is φ = 357122304.

The previous prime is 379728467. The next prime is 379728493. The reversal of 379728473 is 374827973.

It can be written as a sum of positive squares in 4 ways, for example, as 95199049 + 284529424 = 9757^2 + 16868^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 379728473 - 222 = 375534169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (379728493) 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 7 ways as a sum of consecutive naturals, for example, 17015 + ... + 32387.

It is an arithmetic number, because the mean of its divisors is an integer number (50296041).

Almost surely, 2379728473 is an apocalyptic number.

It is an amenable number.

379728473 is a deficient number, since it is larger than the sum of its proper divisors (22639855).

379728473 is a wasteful number, since it uses less digits than its factorization.

379728473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16843.

The product of its digits is 1778112, while the sum is 50.

The square root of 379728473 is about 19486.6229244577. The cubic root of 379728473 is about 724.1430845933.

The spelling of 379728473 in words is "three hundred seventy-nine million, seven hundred twenty-eight thousand, four hundred seventy-three".

Divisors: 1 17 1453 15373 24701 261341 22336969 379728473