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12402103 = 74341203
BaseRepresentation
bin101111010011…
…110110110111
3212100002111011
4233103312313
511133331403
61121453051
7210262510
oct57236667
925302434
1012402103
11700097a
1241a1187
13275302c
14190ba07
15114ea6d
hexbd3db7

12402103 has 8 divisors (see below), whose sum is σ = 14503808. Its totient is φ = 10382904.

The previous prime is 12402097. The next prime is 12402113. The reversal of 12402103 is 30120421.

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

It is not a de Polignac number, because 12402103 - 221 = 10304951 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 (12402113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20301 + ... + 20902.

It is an arithmetic number, because the mean of its divisors is an integer number (1812976).

Almost surely, 212402103 is an apocalyptic number.

12402103 is a deficient number, since it is larger than the sum of its proper divisors (2101705).

12402103 is an equidigital number, since it uses as much as digits as its factorization.

12402103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41253.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12402103 is about 3521.6619656066. The cubic root of 12402103 is about 231.4719896075.

Adding to 12402103 its reverse (30120421), we get a palindrome (42522524).

The spelling of 12402103 in words is "twelve million, four hundred two thousand, one hundred three".

Divisors: 1 7 43 301 41203 288421 1771729 12402103