Search a number
-
+
4382681 = 21120771
BaseRepresentation
bin10000101101111111011001
322020122220112
4100231333121
52110221211
6233534105
752152332
oct20557731
98218815
104382681
112523856
121574335
13ba5b04
14821289
155b888b
hex42dfd9

4382681 has 4 divisors (see below), whose sum is σ = 4403664. Its totient is φ = 4361700.

The previous prime is 4382663. The next prime is 4382699. The reversal of 4382681 is 1862834.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1862834 = 2931417.

It is an interprime number because it is at equal distance from previous prime (4382663) and next prime (4382699).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4382681 is a prime.

It is a super-2 number, since 2×43826812 = 38415785495522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4382611) 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, 10175 + ... + 10596.

It is an arithmetic number, because the mean of its divisors is an integer number (1100916).

Almost surely, 24382681 is an apocalyptic number.

It is an amenable number.

4382681 is a deficient number, since it is larger than the sum of its proper divisors (20983).

4382681 is a wasteful number, since it uses less digits than its factorization.

4382681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20982.

The product of its digits is 9216, while the sum is 32.

The square root of 4382681 is about 2093.4853713365. The cubic root of 4382681 is about 163.6489740656.

It can be divided in two parts, 438 and 2681, that multiplied together give a triangular number (1174278 = T1532).

The spelling of 4382681 in words is "four million, three hundred eighty-two thousand, six hundred eighty-one".

Divisors: 1 211 20771 4382681