Search a number
-
+
2077281 = 321713577
BaseRepresentation
bin111111011001001100001
310220112111100
413323021201
51012433111
6112305013
723441133
oct7731141
93815440
102077281
111199768
12842169
1357967b
143c1053
152b0756
hex1fb261

2077281 has 12 divisors (see below), whose sum is σ = 3177252. Its totient is φ = 1303296.

The previous prime is 2077261. The next prime is 2077297. The reversal of 2077281 is 1827702.

It can be written as a sum of positive squares in 2 ways, for example, as 1846881 + 230400 = 1359^2 + 480^2 .

It is not a de Polignac number, because 2077281 - 25 = 2077249 is a prime.

It is a super-2 number, since 2×20772812 = 8630192705922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2077261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6636 + ... + 6941.

It is an arithmetic number, because the mean of its divisors is an integer number (264771).

22077281 is an apocalyptic number.

It is an amenable number.

2077281 is a deficient number, since it is larger than the sum of its proper divisors (1099971).

2077281 is a wasteful number, since it uses less digits than its factorization.

2077281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13600 (or 13597 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 2077281 is about 1441.2775582795. The cubic root of 2077281 is about 127.5944398346.

The spelling of 2077281 in words is "two million, seventy-seven thousand, two hundred eighty-one".

Divisors: 1 3 9 17 51 153 13577 40731 122193 230809 692427 2077281