Search a number
-
+
2111304413 = 4494702237
BaseRepresentation
bin111110111010111…
…1111001011011101
312110010210101011202
41331311333023131
513310443220123
6545300325245
7103214535311
oct17565771335
95403711152
102111304413
1199385a289
124ab0a3825
1327854836a
1416058db41
15c554ba28
hex7dd7f2dd

2111304413 has 4 divisors (see below), whose sum is σ = 2116007100. Its totient is φ = 2106601728.

The previous prime is 2111304407. The next prime is 2111304421. The reversal of 2111304413 is 3144031112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1219266724 + 892037689 = 34918^2 + 29867^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111304413 - 28 = 2111304157 is a prime.

It is a super-3 number, since 3×21113044133 (a number of 29 digits) contains 333 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 (2111307413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2350670 + ... + 2351567.

It is an arithmetic number, because the mean of its divisors is an integer number (529001775).

Almost surely, 22111304413 is an apocalyptic number.

It is an amenable number.

2111304413 is a deficient number, since it is larger than the sum of its proper divisors (4702687).

2111304413 is an equidigital number, since it uses as much as digits as its factorization.

2111304413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702686.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2111304413 is about 45948.9326644265. The cubic root of 2111304413 is about 1282.8728630484.

Adding to 2111304413 its reverse (3144031112), we get a palindrome (5255335525).

The spelling of 2111304413 in words is "two billion, one hundred eleven million, three hundred four thousand, four hundred thirteen".

Divisors: 1 449 4702237 2111304413