Search a number
-
+
2111021201 = 19377929401
BaseRepresentation
bin111110111010011…
…1010000010010001
312110010020222200102
41331310322002101
513310410134301
6545250302145
7103212245522
oct17564720221
95403228612
102111021201
11993686523
124aab87955
13278479493
14160518849
15c54e2b6b
hex7dd3a091

2111021201 has 8 divisors (see below), whose sum is σ = 2222791200. Its totient is φ = 1999317600.

The previous prime is 2111021147. The next prime is 2111021219. The reversal of 2111021201 is 1021201112.

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 2111021201 - 26 = 2111021137 is a prime.

It is a super-2 number, since 2×21110212012 = 8912821022142964802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111021221) 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, 57101 + ... + 86501.

It is an arithmetic number, because the mean of its divisors is an integer number (277848900).

Almost surely, 22111021201 is an apocalyptic number.

It is an amenable number.

2111021201 is a deficient number, since it is larger than the sum of its proper divisors (111769999).

2111021201 is a wasteful number, since it uses less digits than its factorization.

2111021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33199.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2111021201 is about 45945.8507484626. The cubic root of 2111021201 is about 1282.8154986321.

Adding to 2111021201 its reverse (1021201112), we get a palindrome (3132222313).

The spelling of 2111021201 in words is "two billion, one hundred eleven million, twenty-one thousand, two hundred one".

Divisors: 1 19 3779 29401 71801 558619 111106379 2111021201