Search a number
-
+
20001134230 = 2571129772417
BaseRepresentation
bin10010101000001010…
…010001011010010110
31220121220122220010021
4102220022101122112
5311430242243410
613104405415354
71305434556460
oct225012213226
956556586107
1020001134230
118534134200
123a6240a55a
131b699b3c8c
14d7a4dd130
157c0de1eda
hex4a8291696

20001134230 has 96 divisors (see below), whose sum is σ = 45290726208. Its totient is φ = 6225162240.

The previous prime is 20001134189. The next prime is 20001134233. The reversal of 20001134230 is 3243110002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001134233) 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, 8273982 + ... + 8276398.

It is an arithmetic number, because the mean of its divisors is an integer number (471778398).

Almost surely, 220001134230 is an apocalyptic number.

20001134230 is an abundant number, since it is smaller than the sum of its proper divisors (25289591978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20001134230 is a wasteful number, since it uses less digits than its factorization.

20001134230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430 (or 3419 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20001134230 its reverse (3243110002), we get a palindrome (23244244232).

The spelling of 20001134230 in words is "twenty billion, one million, one hundred thirty-four thousand, two hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 121 154 242 385 605 770 847 977 1210 1694 1954 2417 4235 4834 4885 6839 8470 9770 10747 12085 13678 16919 21494 24170 26587 33838 34195 53174 53735 68390 75229 84595 107470 118217 132935 150458 169190 186109 236434 265870 292457 372218 376145 584914 591085 752290 827519 930545 1182170 1462285 1655038 1861090 2047199 2361409 2924570 4094398 4137595 4722818 8275190 10235995 11807045 16529863 20471990 23614090 25975499 33059726 51950998 82649315 129877495 165298630 181828493 259754990 285730489 363656986 571460978 909142465 1428652445 1818284930 2000113423 2857304890 4000226846 10000567115 20001134230