Search a number
-
+
2021552205 = 35134770147
BaseRepresentation
bin111100001111110…
…0111000001001101
312012212220111021220
41320133213001031
513120004132310
6532332513553
7101044624131
oct17037470115
95185814256
102021552205
11948128102
1248501b8b9
13262a8214a
141526a93c1
15bc71d670
hex787e704d

2021552205 has 8 divisors (see below), whose sum is σ = 3234483552. Its totient is φ = 1078161168.

The previous prime is 2021552167. The next prime is 2021552237. The reversal of 2021552205 is 5022551202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2021552205 - 229 = 1484681293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67385059 + ... + 67385088.

It is an arithmetic number, because the mean of its divisors is an integer number (404310444).

Almost surely, 22021552205 is an apocalyptic number.

It is an amenable number.

2021552205 is a deficient number, since it is larger than the sum of its proper divisors (1212931347).

2021552205 is a wasteful number, since it uses less digits than its factorization.

2021552205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134770155.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 2021552205 is about 44961.6748464734. The cubic root of 2021552205 is about 1264.4305695870.

The spelling of 2021552205 in words is "two billion, twenty-one million, five hundred fifty-two thousand, two hundred five".

Divisors: 1 3 5 15 134770147 404310441 673850735 2021552205