Search a number
-
+
12877893 = 337611117
BaseRepresentation
bin110001001000…
…000001000101
3220020021011000
4301020001011
511244043033
61140003513
7214313610
oct61100105
926207130
1012877893
1172a6396
124390599
13288b772
1419d3177
1511e5a13
hexc48045

12877893 has 32 divisors (see below), whose sum is σ = 22181120. Its totient is φ = 7231680.

The previous prime is 12877883. The next prime is 12877897. The reversal of 12877893 is 39877821.

It is not a de Polignac number, because 12877893 - 28 = 12877637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12877897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10971 + ... + 12087.

It is an arithmetic number, because the mean of its divisors is an integer number (693160).

Almost surely, 212877893 is an apocalyptic number.

It is an amenable number.

12877893 is a deficient number, since it is larger than the sum of its proper divisors (9303227).

12877893 is a wasteful number, since it uses less digits than its factorization.

12877893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194 (or 1188 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 12877893 is about 3588.5781306807. The cubic root of 12877893 is about 234.3949608600.

It can be divided in two parts, 1287 and 7893, that added together give a triangular number (9180 = T135).

The spelling of 12877893 in words is "twelve million, eight hundred seventy-seven thousand, eight hundred ninety-three".

Divisors: 1 3 7 9 21 27 61 63 183 189 427 549 1117 1281 1647 3351 3843 7819 10053 11529 23457 30159 68137 70371 204411 211113 476959 613233 1430877 1839699 4292631 12877893