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20011112303 = 7213192371887
BaseRepresentation
bin10010101000110000…
…010101011101101111
31220122121102211110112
4102220300111131233
5311440321043203
613105403330235
71305615435200
oct225060253557
956577384415
1020011112303
118539829946
123a6582097b
131b6ba98870
14d7b9795a7
157c1c136d8
hex4a8c1576f

20011112303 has 48 divisors (see below), whose sum is σ = 27535979520. Its totient is φ = 14347295424.

The previous prime is 20011112279. The next prime is 20011112311. The reversal of 20011112303 is 30321111002.

It is not a de Polignac number, because 20011112303 - 28 = 20011112047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011112393) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 242426 + ... + 314312.

It is an arithmetic number, because the mean of its divisors is an integer number (573666240).

Almost surely, 220011112303 is an apocalyptic number.

20011112303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20011112303 is a deficient number, since it is larger than the sum of its proper divisors (7524867217).

20011112303 is a wasteful number, since it uses less digits than its factorization.

20011112303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71956 (or 71949 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20011112303 its reverse (30321111002), we get a palindrome (50332223305).

The spelling of 20011112303 in words is "twenty billion, eleven million, one hundred twelve thousand, three hundred three".

Divisors: 1 7 13 19 23 49 91 133 161 247 299 437 637 931 1127 1729 2093 3059 5681 12103 14651 21413 39767 71887 278369 503209 934531 1365853 1653401 3522463 6541717 9560971 11573807 17756089 21494213 31414619 45792019 66926797 81016649 124292623 150459491 219902333 408390047 870048361 1053216437 1539316331 2858730329 20011112303