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20533053053 = 131953164471
BaseRepresentation
bin10011000111110111…
…011000011001111101
31221222222120011120102
4103013313120121331
5314022430144203
613233250330445
71324554033302
oct230767303175
957888504512
1020533053053
118787411737
123b90589a25
131c22c63546
14dcb0030a9
15802962888
hex4c7dd867d

20533053053 has 8 divisors (see below), whose sum is σ = 20711630016. Its totient is φ = 20354807200.

The previous prime is 20533053049. The next prime is 20533053061. The reversal of 20533053053 is 35035033502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20533053053 - 22 = 20533053049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533053553) 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, 42608 + ... + 207078.

It is an arithmetic number, because the mean of its divisors is an integer number (2588953752).

Almost surely, 220533053053 is an apocalyptic number.

It is an amenable number.

20533053053 is a deficient number, since it is larger than the sum of its proper divisors (178576963).

20533053053 is a wasteful number, since it uses less digits than its factorization.

20533053053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165555.

The product of its (nonzero) digits is 20250, while the sum is 29.

Adding to 20533053053 its reverse (35035033502), we get a palindrome (55568086555).

The spelling of 20533053053 in words is "twenty billion, five hundred thirty-three million, fifty-three thousand, fifty-three".

Divisors: 1 131 953 124843 164471 21545701 156740863 20533053053