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20273420053 = 67369781847
BaseRepresentation
bin10010111000011000…
…111101011100010101
31221022220000110001101
4102320120331130111
5313004443420203
613151413430101
71315252140625
oct227030753425
957286013041
1020273420053
1186638a9607
123b1963b331
131bb122a353
14da473a885
157d9c7941d
hex4b863d715

20273420053 has 8 divisors (see below), whose sum is σ = 20581825472. Its totient is φ = 19965185856.

The previous prime is 20273420039. The next prime is 20273420087. The reversal of 20273420053 is 35002437202.

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 20273420053 - 213 = 20273411861 is a prime.

It is a super-2 number, since 2×202734200532 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20273420003) 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, 206776 + ... + 288622.

It is an arithmetic number, because the mean of its divisors is an integer number (2572728184).

Almost surely, 220273420053 is an apocalyptic number.

It is an amenable number.

20273420053 is a deficient number, since it is larger than the sum of its proper divisors (308405419).

20273420053 is an equidigital number, since it uses as much as digits as its factorization.

20273420053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85611.

The product of its (nonzero) digits is 10080, while the sum is 28.

Adding to 20273420053 its reverse (35002437202), we get a palindrome (55275857255).

The spelling of 20273420053 in words is "twenty billion, two hundred seventy-three million, four hundred twenty thousand, fifty-three".

Divisors: 1 67 3697 81847 247699 5483749 302588359 20273420053