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379812173 = 1355752453
BaseRepresentation
bin10110101000110…
…111100101001101
3222110200110100112
4112220313211031
51234212442143
6101404405405
712261231056
oct2650674515
9873613315
10379812173
11185437564
12a7246865
13608c3840
143862b72d
1523526e18
hex16a3794d

379812173 has 8 divisors (see below), whose sum is σ = 409770648. Its totient is φ = 349959744.

The previous prime is 379812161. The next prime is 379812193. The reversal of 379812173 is 371218973.

It can be written as a sum of positive squares in 4 ways, for example, as 3374569 + 376437604 = 1837^2 + 19402^2 .

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 379812173 - 214 = 379795789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 379812173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379812193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18986 + ... + 33467.

It is an arithmetic number, because the mean of its divisors is an integer number (51221331).

Almost surely, 2379812173 is an apocalyptic number.

It is an amenable number.

379812173 is a deficient number, since it is larger than the sum of its proper divisors (29958475).

379812173 is a wasteful number, since it uses less digits than its factorization.

379812173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53023.

The product of its digits is 63504, while the sum is 41.

The square root of 379812173 is about 19488.7704332521. The cubic root of 379812173 is about 724.1962860497.

The spelling of 379812173 in words is "three hundred seventy-nine million, eight hundred twelve thousand, one hundred seventy-three".

Divisors: 1 13 557 7241 52453 681889 29216321 379812173