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20431101053 = 113414154403
BaseRepresentation
bin10011000001110010…
…011101110001111101
31221201212201110201102
4103001302131301331
5313320330213203
613215205222445
71322205331166
oct230162356175
957655643642
1020431101053
118734907690
123b62401a25
131c07ab840c
14dbb66476d
157e8a24888
hex4c1c9dc7d

20431101053 has 8 divisors (see below), whose sum is σ = 22289536416. Its totient is φ = 18572842800.

The previous prime is 20431100971. The next prime is 20431101127. The reversal of 20431101053 is 35010113402.

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 20431101053 - 212 = 20431096957 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 (20431101853) 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, 348350 + ... + 402752.

It is an arithmetic number, because the mean of its divisors is an integer number (2786192052).

Almost surely, 220431101053 is an apocalyptic number.

It is an amenable number.

20431101053 is a deficient number, since it is larger than the sum of its proper divisors (1858435363).

20431101053 is a wasteful number, since it uses less digits than its factorization.

20431101053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88555.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 20431101053 its reverse (35010113402), we get a palindrome (55441214455).

The spelling of 20431101053 in words is "twenty billion, four hundred thirty-one million, one hundred one thousand, fifty-three".

Divisors: 1 11 34141 54403 375551 598433 1857372823 20431101053