Search a number
-
+
2771029 = 14891861
BaseRepresentation
bin1010100100100001010101
312012210010201
422210201111
51202133104
6135220501
732360542
oct12444125
95183121
102771029
111622a08
12b17731
13760381
14521bc9
1539b0a4
hex2a4855

2771029 has 4 divisors (see below), whose sum is σ = 2774380. Its totient is φ = 2767680.

The previous prime is 2771023. The next prime is 2771033. The reversal of 2771029 is 9201772.

It is a happy number.

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 178929 + 2592100 = 423^2 + 1610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2771029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2770988 and 2771006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2771023) 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, 559 + ... + 2419.

It is an arithmetic number, because the mean of its divisors is an integer number (693595).

22771029 is an apocalyptic number.

It is an amenable number.

2771029 is a deficient number, since it is larger than the sum of its proper divisors (3351).

2771029 is a wasteful number, since it uses less digits than its factorization.

2771029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 2771029 is about 1664.6408020952. The cubic root of 2771029 is about 140.4581757704.

The spelling of 2771029 in words is "two million, seven hundred seventy-one thousand, twenty-nine".

Divisors: 1 1489 1861 2771029