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12877140 = 22351571367
BaseRepresentation
bin110001000111…
…110101010100
3220020020010010
4301013311110
511244032030
61140000220
7214311453
oct61076524
926206103
1012877140
1172a5871
124390070
13288b313
1419d2b9a
1511e56b0
hexc47d54

12877140 has 48 divisors (see below), whose sum is σ = 36312192. Its totient is φ = 3409536.

The previous prime is 12877097. The next prime is 12877159. The reversal of 12877140 is 4177821.

12877140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12877098 and 12877107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8737 + ... + 10103.

It is an arithmetic number, because the mean of its divisors is an integer number (756504).

Almost surely, 212877140 is an apocalyptic number.

12877140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12877140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18156096).

12877140 is an abundant number, since it is smaller than the sum of its proper divisors (23435052).

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

12877140 is a wasteful number, since it uses less digits than its factorization.

12877140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536 (or 1534 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 12877140 is about 3588.4732129417. The cubic root of 12877140 is about 234.3903922336.

The spelling of 12877140 in words is "twelve million, eight hundred seventy-seven thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 157 314 471 628 785 942 1367 1570 1884 2355 2734 3140 4101 4710 5468 6835 8202 9420 13670 16404 20505 27340 41010 82020 214619 429238 643857 858476 1073095 1287714 2146190 2575428 3219285 4292380 6438570 12877140