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12146886 = 232674827
BaseRepresentation
bin101110010101…
…100011000110
3211212010101200
4232111203012
511102200021
61112203330
7205150443
oct56254306
924763350
1012146886
116947154
124099546
132693b0b
1418829ca
1510ee126
hexb958c6

12146886 has 12 divisors (see below), whose sum is σ = 26318292. Its totient is φ = 4048956.

The previous prime is 12146881. The next prime is 12146903. The reversal of 12146886 is 68864121.

12146886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12146886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12146881) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 337396 + ... + 337431.

It is an arithmetic number, because the mean of its divisors is an integer number (2193191).

Almost surely, 212146886 is an apocalyptic number.

12146886 is an abundant number, since it is smaller than the sum of its proper divisors (14171406).

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

12146886 is a wasteful number, since it uses less digits than its factorization.

12146886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674835 (or 674832 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 12146886 is about 3485.2382988829. The cubic root of 12146886 is about 229.8731878130.

It can be divided in two parts, 1214 and 6886, that added together give a square (8100 = 902).

The spelling of 12146886 in words is "twelve million, one hundred forty-six thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 9 18 674827 1349654 2024481 4048962 6073443 12146886