Search a number
-
+
20020215353020 = 22516730719524679
BaseRepresentation
bin1001000110101010100011…
…10100110000111010111100
32121212220200020012211201021
410203111101310300322330
510111002400112244040
6110325054315153524
74134261412466101
oct443252164607274
977786606184637
1020020215353020
116419586705a63
1222b40757458a4
13b22b8a48cb9c
144d2daada0aa8
1524ab8999024a
hex123551d30ebc

20020215353020 has 48 divisors (see below), whose sum is σ = 42431971760640. Its totient is φ = 7934204349504.

The previous prime is 20020215353003. The next prime is 20020215353041. The reversal of 20020215353020 is 2035351202002.

It is a super-3 number, since 3×200202153530203 (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8736960 + ... + 10787719.

It is an arithmetic number, because the mean of its divisors is an integer number (883999411680).

Almost surely, 220020215353020 is an apocalyptic number.

20020215353020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020215353020 is an abundant number, since it is smaller than the sum of its proper divisors (22411756407620).

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

20020215353020 is a wasteful number, since it uses less digits than its factorization.

20020215353020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19525162 (or 19525160 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20020215353020 its reverse (2035351202002), we get a palindrome (22055566555022).

The spelling of 20020215353020 in words is "twenty trillion, twenty billion, two hundred fifteen million, three hundred fifty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 167 307 334 614 668 835 1228 1535 1670 3070 3340 6140 51269 102538 205076 256345 512690 1025380 19524679 39049358 78098716 97623395 195246790 390493580 3260621393 5994076453 6521242786 11988152906 13042485572 16303106965 23976305812 29970382265 32606213930 59940764530 65212427860 119881529060 1001010767651 2002021535302 4004043070604 5005053838255 10010107676510 20020215353020