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4072939 = 131731811
BaseRepresentation
bin1111100010010111101011
321122221000121
433202113223
52020313224
6223144111
746422313
oct17422753
97587017
104072939
112332072
121445037
13ac7b30
14780443
15556be4
hex3e25eb

4072939 has 8 divisors (see below), whose sum is σ = 4414032. Its totient is φ = 3735840.

The previous prime is 4072931. The next prime is 4072949. The reversal of 4072939 is 9392704.

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 4072939 - 23 = 4072931 is a prime.

It is a Duffinian number.

4072939 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4072931) 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, 1344 + ... + 3154.

It is an arithmetic number, because the mean of its divisors is an integer number (551754).

Almost surely, 24072939 is an apocalyptic number.

4072939 is a deficient number, since it is larger than the sum of its proper divisors (341093).

4072939 is a wasteful number, since it uses less digits than its factorization.

4072939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 4072939 is about 2018.1523728401. The cubic root of 4072939 is about 159.6991612674.

The spelling of 4072939 in words is "four million, seventy-two thousand, nine hundred thirty-nine".

Divisors: 1 13 173 1811 2249 23543 313303 4072939