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12770230 = 2511176829
BaseRepresentation
bin110000101101…
…101110110110
3220000210110111
4300231232312
511232121410
61133413234
7213354664
oct60555666
926023414
1012770230
117232510
12433a21a
132851765
1419a5c34
1511c3b8a
hexc2dbb6

12770230 has 32 divisors (see below), whose sum is σ = 26555040. Its totient is φ = 4369920.

The previous prime is 12770209. The next prime is 12770239. The reversal of 12770230 is 3207721.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12770239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1545 + ... + 5284.

It is an arithmetic number, because the mean of its divisors is an integer number (829845).

Almost surely, 212770230 is an apocalyptic number.

12770230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12770230 is an abundant number, since it is smaller than the sum of its proper divisors (13784810).

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

12770230 is a wasteful number, since it uses less digits than its factorization.

12770230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6864.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 12770230 is about 3573.5458581079. The cubic root of 12770230 is about 233.7399282648.

Adding to 12770230 its reverse (3207721), we get a palindrome (15977951).

The spelling of 12770230 in words is "twelve million, seven hundred seventy thousand, two hundred thirty".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 170 187 374 935 1870 6829 13658 34145 68290 75119 116093 150238 232186 375595 580465 751190 1160930 1277023 2554046 6385115 12770230