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12670471 = 111151861
BaseRepresentation
bin110000010101…
…011000000111
3212211201121201
4300111120013
511220423341
61131323331
7212461102
oct60253007
925751551
1012670471
117174570
1242b0547
132818228
14197b739
1511a4331
hexc15607

12670471 has 4 divisors (see below), whose sum is σ = 13822344. Its totient is φ = 11518600.

The previous prime is 12670453. The next prime is 12670481. The reversal of 12670471 is 17407621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12670471 - 221 = 10573319 is a prime.

It is a super-3 number, since 3×126704713 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12670421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575920 + ... + 575941.

It is an arithmetic number, because the mean of its divisors is an integer number (3455586).

Almost surely, 212670471 is an apocalyptic number.

12670471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12670471 is a deficient number, since it is larger than the sum of its proper divisors (1151873).

12670471 is a wasteful number, since it uses less digits than its factorization.

12670471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151872.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 12670471 is about 3559.5605065794. The cubic root of 12670471 is about 233.1296901212.

The spelling of 12670471 in words is "twelve million, six hundred seventy thousand, four hundred seventy-one".

Divisors: 1 11 1151861 12670471