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2379121 = 13211801
BaseRepresentation
bin1001000100110101110001
311110212112121
421010311301
51102112441
6122554241
726136133
oct11046561
94425477
102379121
111385518
12968981
13653b84
1445d053
1531edd1
hex244d71

2379121 has 4 divisors (see below), whose sum is σ = 2382244. Its totient is φ = 2376000.

The previous prime is 2379079. The next prime is 2379149. The reversal of 2379121 is 1219732.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1299600 + 1079521 = 1140^2 + 1039^2 .

It is a cyclic number.

It is not a de Polignac number, because 2379121 - 27 = 2378993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2379151) 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, 421 + ... + 2221.

It is an arithmetic number, because the mean of its divisors is an integer number (595561).

22379121 is an apocalyptic number.

It is an amenable number.

2379121 is a deficient number, since it is larger than the sum of its proper divisors (3123).

2379121 is a wasteful number, since it uses less digits than its factorization.

2379121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122.

The product of its digits is 756, while the sum is 25.

The square root of 2379121 is about 1542.4399502088. The cubic root of 2379121 is about 133.4972061491.

It can be divided in two parts, 2379 and 121, that added together give a square (2500 = 502).

The spelling of 2379121 in words is "two million, three hundred seventy-nine thousand, one hundred twenty-one".

Divisors: 1 1321 1801 2379121