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12671379 = 3271391447
BaseRepresentation
bin110000010101…
…100110010011
3212211202212100
4300111212103
511220441004
61131331443
7212463540
oct60254623
925752770
1012671379
117175216
1242b0b83
132818776
14197bbc7
1511a4739
hexc15993

12671379 has 24 divisors (see below), whose sum is σ = 21082880. Its totient is φ = 7183728.

The previous prime is 12671377. The next prime is 12671381. The reversal of 12671379 is 97317621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12671377) and next prime (12671381).

It is not a de Polignac number, because 12671379 - 21 = 12671377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12671377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8034 + ... + 9480.

Almost surely, 212671379 is an apocalyptic number.

12671379 is a deficient number, since it is larger than the sum of its proper divisors (8411501).

12671379 is a wasteful number, since it uses less digits than its factorization.

12671379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599 (or 1596 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 12671379 is about 3559.6880481301. The cubic root of 12671379 is about 233.1352588882.

The spelling of 12671379 in words is "twelve million, six hundred seventy-one thousand, three hundred seventy-nine".

Divisors: 1 3 7 9 21 63 139 417 973 1251 1447 2919 4341 8757 10129 13023 30387 91161 201133 603399 1407931 1810197 4223793 12671379