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12406893 = 34618971
BaseRepresentation
bin101111010101…
…000001101101
3212100100001120
4233111001231
511134010033
61121531153
7210312462
oct57250155
925310046
1012406893
117004534
1241a3ab9
132755275
14190d669
1511511b3
hexbd506d

12406893 has 8 divisors (see below), whose sum is σ = 16580256. Its totient is φ = 8252400.

The previous prime is 12406883. The next prime is 12406897. The reversal of 12406893 is 39860421.

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

It is not a de Polignac number, because 12406893 - 220 = 11358317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12406897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3103 + ... + 5868.

It is an arithmetic number, because the mean of its divisors is an integer number (2072532).

Almost surely, 212406893 is an apocalyptic number.

It is an amenable number.

12406893 is a deficient number, since it is larger than the sum of its proper divisors (4173363).

12406893 is an equidigital number, since it uses as much as digits as its factorization.

12406893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9435.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 12406893 is about 3522.3419765832. The cubic root of 12406893 is about 231.5017858477.

The spelling of 12406893 in words is "twelve million, four hundred six thousand, eight hundred ninety-three".

Divisors: 1 3 461 1383 8971 26913 4135631 12406893