Search a number
-
+
2728901 = 7974019
BaseRepresentation
bin1010011010001111000101
312010122100102
422122033011
51144311101
6134253445
732123660
oct12321705
95118312
102728901
1115a429a
12ab7285
13747146
145106d7
1538d86b
hex29a3c5

2728901 has 8 divisors (see below), whose sum is σ = 3151680. Its totient is φ = 2314368.

The previous prime is 2728889. The next prime is 2728907. The reversal of 2728901 is 1098272.

It is a happy number.

2728901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2728901 - 214 = 2712517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331 + ... + 2688.

It is an arithmetic number, because the mean of its divisors is an integer number (393960).

22728901 is an apocalyptic number.

It is an amenable number.

2728901 is a deficient number, since it is larger than the sum of its proper divisors (422779).

2728901 is an equidigital number, since it uses as much as digits as its factorization.

2728901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2728901 is about 1651.9385581794. The cubic root of 2728901 is about 139.7427418484.

The spelling of 2728901 in words is "two million, seven hundred twenty-eight thousand, nine hundred one".

Divisors: 1 7 97 679 4019 28133 389843 2728901