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3145146 = 231947587
BaseRepresentation
bin1011111111110110111010
312220210022220
423333312322
51301121041
6151224510
735506344
oct13776672
95823286
103145146
111858aa4
121078136
13861744
145bc294
15421d66
hex2ffdba

3145146 has 32 divisors (see below), whose sum is σ = 6773760. Its totient is φ = 970416.

The previous prime is 3145141. The next prime is 3145147. The reversal of 3145146 is 6415413.

It is a super-3 number, since 3×31451463 = 93334818285208716408, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (3145141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5065 + ... + 5651.

It is an arithmetic number, because the mean of its divisors is an integer number (211680).

Almost surely, 23145146 is an apocalyptic number.

3145146 is an abundant number, since it is smaller than the sum of its proper divisors (3628614).

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

3145146 is a wasteful number, since it uses less digits than its factorization.

3145146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658.

The product of its digits is 1440, while the sum is 24.

The square root of 3145146 is about 1773.4559481419. The cubic root of 3145146 is about 146.5143862524.

It can be divided in two parts, 314 and 5146, that added together give a triangular number (5460 = T104).

The spelling of 3145146 in words is "three million, one hundred forty-five thousand, one hundred forty-six".

Divisors: 1 2 3 6 19 38 47 57 94 114 141 282 587 893 1174 1761 1786 2679 3522 5358 11153 22306 27589 33459 55178 66918 82767 165534 524191 1048382 1572573 3145146