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12671630 = 2517131569
BaseRepresentation
bin110000010101…
…101010001110
3212211210012122
4300111222032
511220443010
61131332542
7212464346
oct60255216
925753178
1012671630
117175424
1242b1152
13281890a
14197bd26
1511a4855
hexc15a8e

12671630 has 32 divisors (see below), whose sum is σ = 24377760. Its totient is φ = 4725760.

The previous prime is 12671621. The next prime is 12671639. The reversal of 12671630 is 3617621.

It is an interprime number because it is at equal distance from previous prime (12671621) and next prime (12671639).

It is a self number, because there is not a number n which added to its sum of digits gives 12671630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12671639) 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 15 ways as a sum of consecutive naturals, for example, 21986 + ... + 22554.

It is an arithmetic number, because the mean of its divisors is an integer number (761805).

Almost surely, 212671630 is an apocalyptic number.

12671630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12671630 is a deficient number, since it is larger than the sum of its proper divisors (11706130).

12671630 is a wasteful number, since it uses less digits than its factorization.

12671630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 12671630 is about 3559.7233038538. The cubic root of 12671630 is about 233.1367982251.

The spelling of 12671630 in words is "twelve million, six hundred seventy-one thousand, six hundred thirty".

Divisors: 1 2 5 10 17 34 85 131 170 262 569 655 1138 1310 2227 2845 4454 5690 9673 11135 19346 22270 48365 74539 96730 149078 372695 745390 1267163 2534326 6335815 12671630