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20320050053 = 227354725237
BaseRepresentation
bin10010111011001010…
…110101101110000101
31221110010202111101102
4102323022311232011
5313103413100203
613200201105445
71316356401302
oct227312655605
957403674342
1020320050053
1186881583a6
123b31188285
131bbaaa5874
14daa9d80a9
157dddda888
hex4bb2b5b85

20320050053 has 8 divisors (see below), whose sum is σ = 20416128672. Its totient is φ = 20224029456.

The previous prime is 20320050031. The next prime is 20320050067. The reversal of 20320050053 is 35005002302.

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 20320050053 - 26 = 20320049989 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 (20320050013) by changing a digit.

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, 792551 + ... + 817787.

It is an arithmetic number, because the mean of its divisors is an integer number (2552016084).

Almost surely, 220320050053 is an apocalyptic number.

It is an amenable number.

20320050053 is a deficient number, since it is larger than the sum of its proper divisors (96078619).

20320050053 is a wasteful number, since it uses less digits than its factorization.

20320050053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29011.

The product of its (nonzero) digits is 900, while the sum is 20.

Adding to 20320050053 its reverse (35005002302), we get a palindrome (55325052355).

The spelling of 20320050053 in words is "twenty billion, three hundred twenty million, fifty thousand, fifty-three".

Divisors: 1 227 3547 25237 805169 5728799 89515639 20320050053