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20206433260 = 2251377717051
BaseRepresentation
bin10010110100011001…
…011011001111101100
31221011012222011110001
4102310121123033230
5312340321331020
613141021554044
71313506564066
oct226431331754
957135864401
1020206433260
11862a006422
123abb115924
131ba03a51b0
14d998a0736
157d3e4650a
hex4b465b3ec

20206433260 has 24 divisors (see below), whose sum is σ = 45697626576. Its totient is φ = 7460836800.

The previous prime is 20206433227. The next prime is 20206433309. The reversal of 20206433260 is 6233460202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38858266 + ... + 38858785.

It is an arithmetic number, because the mean of its divisors is an integer number (1904067774).

Almost surely, 220206433260 is an apocalyptic number.

20206433260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20206433260 is an abundant number, since it is smaller than the sum of its proper divisors (25491193316).

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

20206433260 is a wasteful number, since it uses less digits than its factorization.

20206433260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77717073 (or 77717071 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 20206433260 its reverse (6233460202), we get a palindrome (26439893462).

The spelling of 20206433260 in words is "twenty billion, two hundred six million, four hundred thirty-three thousand, two hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 77717051 155434102 310868204 388585255 777170510 1010321663 1554341020 2020643326 4041286652 5051608315 10103216630 20206433260