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12379886 = 215140993
BaseRepresentation
bin101111001110…
…011011101110
3212021222000022
4233032123232
511132124021
61121202142
7210140651
oct57163356
925258008
1012379886
116a96212
124190352
132745b9c
141903898
1511481ab
hexbce6ee

12379886 has 8 divisors (see below), whose sum is σ = 18693264. Its totient is φ = 6148800.

The previous prime is 12379883. The next prime is 12379891. The reversal of 12379886 is 68897321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12379883) 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, 20195 + ... + 20798.

It is an arithmetic number, because the mean of its divisors is an integer number (2336658).

Almost surely, 212379886 is an apocalyptic number.

12379886 is a deficient number, since it is larger than the sum of its proper divisors (6313378).

12379886 is a wasteful number, since it uses less digits than its factorization.

12379886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41146.

The product of its digits is 145152, while the sum is 44.

The square root of 12379886 is about 3518.5062171325. The cubic root of 12379886 is about 231.3336881420. Note that the first 3 decimals are identical.

The spelling of 12379886 in words is "twelve million, three hundred seventy-nine thousand, eight hundred eighty-six".

Divisors: 1 2 151 302 40993 81986 6189943 12379886