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20101032203 = 7217165714563
BaseRepresentation
bin10010101110000111…
…010110100100001011
31220212212122020101012
4102232013112210023
5312131331012303
613122334514135
71311056645300
oct225607264413
956785566335
1020101032203
11858556600a
123a8b96594b
131b845c01c5
14d898a50a7
157c9a765d8
hex4ae1d690b

20101032203 has 24 divisors (see below), whose sum is σ = 24774936912. Its totient is φ = 16205059584.

The previous prime is 20101032187. The next prime is 20101032241. The reversal of 20101032203 is 30223010102.

It is a happy number.

It is not a de Polignac number, because 20101032203 - 24 = 20101032187 is a prime.

It is a super-4 number, since 4×201010322034 (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101032283) 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 23 ways as a sum of consecutive naturals, for example, 1373000 + ... + 1387562.

It is an arithmetic number, because the mean of its divisors is an integer number (1032289038).

Almost surely, 220101032203 is an apocalyptic number.

20101032203 is a deficient number, since it is larger than the sum of its proper divisors (4673904709).

20101032203 is a wasteful number, since it uses less digits than its factorization.

20101032203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16251 (or 16244 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20101032203 its reverse (30223010102), we get a palindrome (50324042305).

The spelling of 20101032203 in words is "twenty billion, one hundred one million, thirty-two thousand, two hundred three".

Divisors: 1 7 17 49 119 833 1657 11599 14563 28169 81193 101941 197183 247571 713587 1380281 1732997 12130979 24130891 168916237 410225147 1182413659 2871576029 20101032203