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12542203 = 73171811
BaseRepresentation
bin101111110110…
…000011111011
3212121012200001
4233312003323
511202322303
61124453431
7211415122
oct57660373
925535601
1012542203
117097163
12424a277
1327a1a2b
141946ab9
15117b31d
hexbf60fb

12542203 has 4 divisors (see below), whose sum is σ = 12714088. Its totient is φ = 12370320.

The previous prime is 12542191. The next prime is 12542227. The reversal of 12542203 is 30224521.

12542203 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12542203 - 217 = 12411131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12542263) 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, 85833 + ... + 85978.

It is an arithmetic number, because the mean of its divisors is an integer number (3178522).

Almost surely, 212542203 is an apocalyptic number.

12542203 is a deficient number, since it is larger than the sum of its proper divisors (171885).

12542203 is an equidigital number, since it uses as much as digits as its factorization.

12542203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171884.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12542203 is about 3541.4972822240. The cubic root of 12542203 is about 232.3403335874.

Adding to 12542203 its reverse (30224521), we get a palindrome (42766724).

The spelling of 12542203 in words is "twelve million, five hundred forty-two thousand, two hundred three".

Divisors: 1 73 171811 12542203