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201430220020 = 22547921026119
BaseRepresentation
bin1011101110011000101…
…1010011110011110100
3201020221000111101112021
42323212023103303310
511300012114020040
6232311420402524
720360425422451
oct2734613236364
9636830441467
10201430220020
1178476120717
12330566a6444
1315cc171bb03
149a6c01c828
15538dcd824a
hex2ee62d3cf4

201430220020 has 24 divisors (see below), whose sum is σ = 423886579200. Its totient is φ = 80403875232.

The previous prime is 201430219999. The next prime is 201430220021. The reversal of 201430220020 is 20022034102.

It is a junction number, because it is equal to n+sod(n) for n = 201430219976 and 201430220003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201430220021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10503480 + ... + 10522639.

It is an arithmetic number, because the mean of its divisors is an integer number (17661940800).

Almost surely, 2201430220020 is an apocalyptic number.

201430220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201430220020 is an abundant number, since it is smaller than the sum of its proper divisors (222456359180).

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

201430220020 is a wasteful number, since it uses less digits than its factorization.

201430220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21026607 (or 21026605 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 201430220020 its reverse (20022034102), we get a palindrome (221452254122).

The spelling of 201430220020 in words is "two hundred one billion, four hundred thirty million, two hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 479 958 1916 2395 4790 9580 21026119 42052238 84104476 105130595 210261190 420522380 10071511001 20143022002 40286044004 50357555005 100715110010 201430220020