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203020411 = 1124417561
BaseRepresentation
bin11000001100111…
…01100001111011
3112011000111122111
430012131201323
5403433123121
632051233151
75013434146
oct1406354173
9464014574
10203020411
11a4666270
1257ba87b7
13330a4029
141cd6b05d
1512c542e1
hexc19d87b

203020411 has 8 divisors (see below), whose sum is σ = 221596848. Its totient is φ = 184464000.

The previous prime is 203020399. The next prime is 203020417. The reversal of 203020411 is 114020302.

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 203020411 - 215 = 202987643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203020391 and 203020400.

It is not an unprimeable number, because it can be changed into a prime (203020417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23071 + ... + 30631.

It is an arithmetic number, because the mean of its divisors is an integer number (27699606).

Almost surely, 2203020411 is an apocalyptic number.

203020411 is a deficient number, since it is larger than the sum of its proper divisors (18576437).

203020411 is a wasteful number, since it uses less digits than its factorization.

203020411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10013.

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

The square root of 203020411 is about 14248.5231164496. The cubic root of 203020411 is about 587.7327628166.

Adding to 203020411 its reverse (114020302), we get a palindrome (317040713).

The spelling of 203020411 in words is "two hundred three million, twenty thousand, four hundred eleven".

Divisors: 1 11 2441 7561 26851 83171 18456401 203020411