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379021 = 2691409
BaseRepresentation
bin1011100100010001101
3201020220211
41130202031
544112041
612042421
73136006
oct1344215
9636824
10379021
11239845
12163411
13103696
149c1ad
1577481
hex5c88d

379021 has 4 divisors (see below), whose sum is σ = 380700. Its totient is φ = 377344.

The previous prime is 379013. The next prime is 379033. The reversal of 379021 is 120973.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120973 = 196367.

It can be written as a sum of positive squares in 2 ways, for example, as 12996 + 366025 = 114^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 379021 - 23 = 379013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378983 and 379001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379081) 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, 436 + ... + 973.

It is an arithmetic number, because the mean of its divisors is an integer number (95175).

2379021 is an apocalyptic number.

It is an amenable number.

379021 is a deficient number, since it is larger than the sum of its proper divisors (1679).

379021 is a wasteful number, since it uses less digits than its factorization.

379021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 379021 is about 615.6468143343. The cubic root of 379021 is about 72.3693087460.

Adding to 379021 its reverse (120973), we get a palindrome (499994).

The spelling of 379021 in words is "three hundred seventy-nine thousand, twenty-one".

Divisors: 1 269 1409 379021