Search a number
-
+
12611028 = 2231995281
BaseRepresentation
bin110000000110…
…110111010100
3212201201002010
4300012313110
511212023103
61130144220
7212122563
oct60066724
925651063
1012611028
117133941
124282070
1327c7161
141963bda
151191903
hexc06dd4

12611028 has 24 divisors (see below), whose sum is σ = 29579200. Its totient is φ = 4181760.

The previous prime is 12611023. The next prime is 12611029. The reversal of 12611028 is 82011621.

It is a junction number, because it is equal to n+sod(n) for n = 12610995 and 12611013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12611023) 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, 253 + ... + 5028.

Almost surely, 212611028 is an apocalyptic number.

It is an amenable number.

12611028 is an abundant number, since it is smaller than the sum of its proper divisors (16968172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12611028 is a wasteful number, since it uses less digits than its factorization.

12611028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5487 (or 5485 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 12611028 is about 3551.2009236313. The cubic root of 12611028 is about 232.7645456807.

Adding to 12611028 its reverse (82011621), we get a palindrome (94622649).

The spelling of 12611028 in words is "twelve million, six hundred eleven thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 199 398 597 796 1194 2388 5281 10562 15843 21124 31686 63372 1050919 2101838 3152757 4203676 6305514 12611028