Search a number
-
+
20010220201 = 67609149033
BaseRepresentation
bin10010101000101100…
…111011101010101001
31220122112202111201201
4102220230323222221
5311440104021301
613105332244201
71305605031256
oct225054735251
956575674651
1020010220201
11853927a674
123a65470661
131b6b8457aa
14d7b7c642d
157c1ad9201
hex4a8b3baa9

20010220201 has 8 divisors (see below), whose sum is σ = 20312628704. Its totient is φ = 19707922080.

The previous prime is 20010220189. The next prime is 20010220211. The reversal of 20010220201 is 10202201002.

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 20010220201 - 211 = 20010218153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010220211) 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, 383581 + ... + 432613.

It is an arithmetic number, because the mean of its divisors is an integer number (2539078588).

Almost surely, 220010220201 is an apocalyptic number.

It is an amenable number.

20010220201 is a deficient number, since it is larger than the sum of its proper divisors (302408503).

20010220201 is an equidigital number, since it uses as much as digits as its factorization.

20010220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55191.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20010220201 its reverse (10202201002), we get a palindrome (30212421203).

The spelling of 20010220201 in words is "twenty billion, ten million, two hundred twenty thousand, two hundred one".

Divisors: 1 67 6091 49033 408097 3285211 298660003 20010220201