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20101010303 = 1117393711273
BaseRepresentation
bin10010101110000111…
…010001001101111111
31220212212121010100002
4102232013101031333
5312131324312203
613122334224515
71311056524403
oct225607211577
956785533302
1020101010303
118585550610
123a8b95513b
131b845b324a
14d8989b103
157c9a6ed88
hex4ae1d137f

20101010303 has 16 divisors (see below), whose sum is σ = 22080625056. Its totient is φ = 18147018240.

The previous prime is 20101010269. The next prime is 20101010317. The reversal of 20101010303 is 30301010102.

It is a cyclic number.

It is not a de Polignac number, because 20101010303 - 212 = 20101006207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101010353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1777475 + ... + 1788747.

It is an arithmetic number, because the mean of its divisors is an integer number (1380039066).

Almost surely, 220101010303 is an apocalyptic number.

20101010303 is a deficient number, since it is larger than the sum of its proper divisors (1979614753).

20101010303 is a wasteful number, since it uses less digits than its factorization.

20101010303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12394.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 20101010303 its reverse (30301010102), we get a palindrome (50402020405).

The spelling of 20101010303 in words is "twenty billion, one hundred one million, ten thousand, three hundred three".

Divisors: 1 11 173 937 1903 10307 11273 124003 162101 1783111 1950229 10562801 21452519 116190811 1827364573 20101010303