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203230153 = 741708119
BaseRepresentation
bin11000001110100…
…00101111001001
3112011102011100201
430013100233021
5404011331103
632055532201
75015266510
oct1407205711
9464364321
10203230153
11a4799905
125808a061
1333148639
141cdc3677
1512c9651d
hexc1d0bc9

203230153 has 8 divisors (see below), whose sum is σ = 237928320. Its totient is φ = 169948320.

The previous prime is 203230147. The next prime is 203230163. The reversal of 203230153 is 351032302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-203230153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203230153.

It is not an unprimeable number, because it can be changed into a prime (203230123) 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, 353773 + ... + 354346.

It is an arithmetic number, because the mean of its divisors is an integer number (29741040).

Almost surely, 2203230153 is an apocalyptic number.

It is an amenable number.

203230153 is a deficient number, since it is larger than the sum of its proper divisors (34698167).

203230153 is an equidigital number, since it uses as much as digits as its factorization.

203230153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708167.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 203230153 is about 14255.8813477105. The cubic root of 203230153 is about 587.9350902865.

Adding to 203230153 its reverse (351032302), we get a palindrome (554262455).

The spelling of 203230153 in words is "two hundred three million, two hundred thirty thousand, one hundred fifty-three".

Divisors: 1 7 41 287 708119 4956833 29032879 203230153