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53205245430 = 2351773508181
BaseRepresentation
bin110001100011010001…
…111001110111110110
312002022222001111202120
4301203101321313312
51332431020323210
640235301020410
73562322060421
oct614321716766
9162288044676
1053205245430
1120622a79417
12a38a3b4706
13502bb26c5c
14280a2c29b8
1515b5e7c270
hexc63479df6

53205245430 has 16 divisors (see below), whose sum is σ = 127692589104. Its totient is φ = 14188065440.

The previous prime is 53205245413. The next prime is 53205245437. The reversal of 53205245430 is 3454250235.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 53205245391 and 53205245400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53205245437) 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, 886754061 + ... + 886754120.

It is an arithmetic number, because the mean of its divisors is an integer number (7980786819).

Almost surely, 253205245430 is an apocalyptic number.

53205245430 is an abundant number, since it is smaller than the sum of its proper divisors (74487343674).

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

53205245430 is a wasteful number, since it uses less digits than its factorization.

53205245430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773508191.

The product of its (nonzero) digits is 72000, while the sum is 33.

Adding to 53205245430 its reverse (3454250235), we get a palindrome (56659495665).

The spelling of 53205245430 in words is "fifty-three billion, two hundred five million, two hundred forty-five thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1773508181 3547016362 5320524543 8867540905 10641049086 17735081810 26602622715 53205245430