Search a number
-
+
20103310203 = 3172731911663
BaseRepresentation
bin10010101110010000…
…000010101101111011
31220220000220222012120
4102232100002231323
5312132421411303
613122455412323
71311115213554
oct225620025573
956800828176
1020103310203
118586881559
123a906840a3
131b84c0a032
14d89cd932b
157c9d76553
hex4ae402b7b

20103310203 has 48 divisors (see below), whose sum is σ = 29032513536. Its totient is φ = 12368471040.

The previous prime is 20103310193. The next prime is 20103310219. The reversal of 20103310203 is 30201330102.

It is not a de Polignac number, because 20103310203 - 212 = 20103306107 is a prime.

It is a super-2 number, since 2×201033102032 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20103318203) 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 47 ways as a sum of consecutive naturals, for example, 12087750 + ... + 12089412.

It is an arithmetic number, because the mean of its divisors is an integer number (604844032).

Almost surely, 220103310203 is an apocalyptic number.

20103310203 is a deficient number, since it is larger than the sum of its proper divisors (8929203333).

20103310203 is a wasteful number, since it uses less digits than its factorization.

20103310203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964 (or 1947 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20103310203 its reverse (30201330102), we get a palindrome (50304640305).

The spelling of 20103310203 in words is "twenty billion, one hundred three million, three hundred ten thousand, two hundred three".

Divisors: 1 3 17 51 73 191 219 289 573 867 1241 1663 3247 3723 4989 9741 13943 21097 28271 41829 55199 63291 84813 121399 165597 237031 317633 364197 480607 711093 952899 1441821 2063783 4029527 5399761 6191349 12088581 16199283 23187209 35084311 69561627 91795937 105252933 275387811 394182553 1182547659 6701103401 20103310203