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12890335 = 517151651
BaseRepresentation
bin110001001011…
…000011011111
3220020220012211
4301023003133
511244442320
61140141251
7214365103
oct61130337
926226184
1012890335
117304777
124397827
132894323
1419d7903
1511e955a
hexc4b0df

12890335 has 8 divisors (see below), whose sum is σ = 16378416. Its totient is φ = 9705600.

The previous prime is 12890323. The next prime is 12890363. The reversal of 12890335 is 53309821.

It is a happy number.

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

It is not a de Polignac number, because 12890335 - 29 = 12889823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12890297 and 12890306.

It is a congruent number.

It is an unprimeable number.

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, 75741 + ... + 75910.

It is an arithmetic number, because the mean of its divisors is an integer number (2047302).

Almost surely, 212890335 is an apocalyptic number.

12890335 is a deficient number, since it is larger than the sum of its proper divisors (3488081).

12890335 is a wasteful number, since it uses less digits than its factorization.

12890335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151673.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 12890335 is about 3590.3112678429. The cubic root of 12890335 is about 234.4704236032.

It can be divided in two parts, 12890 and 335, that added together give a square (13225 = 1152).

The spelling of 12890335 in words is "twelve million, eight hundred ninety thousand, three hundred thirty-five".

Divisors: 1 5 17 85 151651 758255 2578067 12890335