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12770147 = 132194197
BaseRepresentation
bin110000101101…
…101101100011
3220000210100102
4300231231203
511232121042
61133413015
7213354515
oct60555543
926023312
1012770147
117232445
12433a16b
132851700
1419a5bb5
1511c3b32
hexc2db63

12770147 has 24 divisors (see below), whose sum is σ = 15064560. Its totient is φ = 10782720.

The previous prime is 12770141. The next prime is 12770189. The reversal of 12770147 is 74107721.

It is not a de Polignac number, because 12770147 - 28 = 12769891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12770141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131603 + ... + 131699.

It is an arithmetic number, because the mean of its divisors is an integer number (627690).

Almost surely, 212770147 is an apocalyptic number.

12770147 is a deficient number, since it is larger than the sum of its proper divisors (2294413).

12770147 is a wasteful number, since it uses less digits than its factorization.

12770147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 12770147 is about 3573.5342449737. The cubic root of 12770147 is about 233.7394218668.

Adding to 12770147 its reverse (74107721), we get a palindrome (86877868).

The spelling of 12770147 in words is "twelve million, seven hundred seventy thousand, one hundred forty-seven".

Divisors: 1 13 19 41 97 169 247 533 779 1261 1843 3211 3977 6929 10127 16393 23959 51701 75563 131651 311467 672113 982319 12770147