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12061371 = 371923743
BaseRepresentation
bin101110000000…
…101010111011
3211200210002110
4232000222323
511041430441
61110303403
7204343230
oct56005273
924623073
1012061371
116898983
124057b63
132663c0a
14185d787
1510d3b16
hexb80abb

12061371 has 48 divisors (see below), whose sum is σ = 20385024. Its totient is φ = 6205248.

The previous prime is 12061367. The next prime is 12061417. The reversal of 12061371 is 17316021.

12061371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12061371 - 22 = 12061367 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12061321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 280476 + ... + 280518.

It is an arithmetic number, because the mean of its divisors is an integer number (424688).

Almost surely, 212061371 is an apocalyptic number.

12061371 is a deficient number, since it is larger than the sum of its proper divisors (8323653).

12061371 is a wasteful number, since it uses less digits than its factorization.

12061371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 12061371 is about 3472.9484591626. The cubic root of 12061371 is about 229.3324753682.

Adding to 12061371 its reverse (17316021), we get a palindrome (29377392).

The spelling of 12061371 in words is "twelve million, sixty-one thousand, three hundred seventy-one".

Divisors: 1 3 7 19 21 37 43 57 111 129 133 259 301 361 399 703 777 817 903 1083 1591 2109 2451 2527 4773 4921 5719 7581 11137 13357 14763 15523 17157 30229 33411 40071 46569 90687 93499 108661 211603 280497 325983 574351 634809 1723053 4020457 12061371