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1228933 = 29311367
BaseRepresentation
bin100101100000010000101
32022102210001
410230002011
5303311213
642201301
713305616
oct4540205
92272701
101228933
1176a352
124b3231
133404a4
1423dc0d
151941dd
hex12c085

1228933 has 8 divisors (see below), whose sum is σ = 1313280. Its totient is φ = 1147440.

The previous prime is 1228919. The next prime is 1228937. The reversal of 1228933 is 3398221.

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

It is a cyclic number.

It is not a de Polignac number, because 1228933 - 217 = 1097861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216 + ... + 1582.

It is an arithmetic number, because the mean of its divisors is an integer number (164160).

21228933 is an apocalyptic number.

It is an amenable number.

1228933 is a deficient number, since it is larger than the sum of its proper divisors (84347).

1228933 is a wasteful number, since it uses less digits than its factorization.

1228933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427.

The product of its digits is 2592, while the sum is 28.

The square root of 1228933 is about 1108.5725055223. The cubic root of 1228933 is about 107.1131362219.

The spelling of 1228933 in words is "one million, two hundred twenty-eight thousand, nine hundred thirty-three".

Divisors: 1 29 31 899 1367 39643 42377 1228933