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20120273 = 79257991
BaseRepresentation
bin100110011000…
…0001011010001
31101212012211022
41030300023101
520122322043
61555125225
7333006455
oct114601321
941765738
1020120273
11103a2728
1268a3815
1342260b4
14295a665
151b76868
hex13302d1

20120273 has 8 divisors (see below), whose sum is σ = 20474880. Its totient is φ = 19768320.

The previous prime is 20120263. The next prime is 20120281. The reversal of 20120273 is 37202102.

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 20120273 - 24 = 20120257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120203) 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, 19808 + ... + 20798.

It is an arithmetic number, because the mean of its divisors is an integer number (2559360).

Almost surely, 220120273 is an apocalyptic number.

It is an amenable number.

20120273 is a deficient number, since it is larger than the sum of its proper divisors (354607).

20120273 is an equidigital number, since it uses as much as digits as its factorization.

20120273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 20120273 is about 4485.5627294688. The cubic root of 20120273 is about 271.9847931594.

Adding to 20120273 its reverse (37202102), we get a palindrome (57322375).

The spelling of 20120273 in words is "twenty million, one hundred twenty thousand, two hundred seventy-three".

Divisors: 1 79 257 991 20303 78289 254687 20120273