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203031130203 = 34111716218269
BaseRepresentation
bin1011110100010110011…
…0010011000001011011
3201102001120220001110000
42331011212103001123
511311301432131303
6233134325424043
720445205063206
oct2750546230133
9642046801400
10203031130203
1179117864190
123342286b023
13161b82b2c45
149b808ac93d
155434616da3
hex2f4599305b

203031130203 has 80 divisors (see below), whose sum is σ = 350586735840. Its totient is φ = 115725542400.

The previous prime is 203031130201. The next prime is 203031130217. The reversal of 203031130203 is 302031130302.

203031130203 is a `hidden beast` number, since 20 + 30 + 311 + 302 + 0 + 3 = 666.

203031130203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203031130203 - 21 = 203031130201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203031130201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 24549153 + ... + 24557421.

It is an arithmetic number, because the mean of its divisors is an integer number (4382334198).

Almost surely, 2203031130203 is an apocalyptic number.

203031130203 is a deficient number, since it is larger than the sum of its proper divisors (147555605637).

203031130203 is a wasteful number, since it uses less digits than its factorization.

203031130203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9930 (or 9921 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 203031130203 its reverse (302031130302), we get a palindrome (505062260505).

Subtracting 203031130203 from its reverse (302031130302), we obtain a palindrome (99000000099).

The spelling of 203031130203 in words is "two hundred three billion, thirty-one million, one hundred thirty thousand, two hundred three".

Divisors: 1 3 9 11 17 27 33 51 81 99 153 187 297 459 561 891 1377 1621 1683 4863 5049 8269 14589 15147 17831 24807 27557 43767 53493 74421 82671 90959 131301 140573 160479 223263 248013 272877 303127 421719 481437 669789 744039 818631 909381 1265157 1444311 1546303 2232117 2455893 2728143 3795471 4638909 7367679 8184429 11386413 13404049 13916727 24553287 40212147 41750181 120636441 125250543 147444539 227868833 361909323 442333617 683606499 1085727969 1327000851 2050819497 2506557163 3981002553 6152458491 7519671489 11943007659 18457375473 22559014467 67677043401 203031130203