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2201002213 = 4378150273
BaseRepresentation
bin1000001100110000…
…1010000011100101
312200101120111102111
42003030022003211
514001424032323
61002223041021
7105354132034
oct20314120345
95611514374
102201002213
11a2a4545a3
12515140171
13290cc2897
1416c45c71b
15cd368c0d
hex8330a0e5

2201002213 has 4 divisors (see below), whose sum is σ = 2201096268. Its totient is φ = 2200908160.

The previous prime is 2201002211. The next prime is 2201002231. The reversal of 2201002213 is 3122001022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1899042084 + 301960129 = 43578^2 + 17377^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201002213 - 21 = 2201002211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201002193 and 2201002202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201002211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18645 + ... + 68917.

It is an arithmetic number, because the mean of its divisors is an integer number (550274067).

Almost surely, 22201002213 is an apocalyptic number.

It is an amenable number.

2201002213 is a deficient number, since it is larger than the sum of its proper divisors (94055).

2201002213 is an equidigital number, since it uses as much as digits as its factorization.

2201002213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94054.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2201002213 is about 46914.8400082533. The cubic root of 2201002213 is about 1300.7889122716.

Adding to 2201002213 its reverse (3122001022), we get a palindrome (5323003235).

The spelling of 2201002213 in words is "two billion, two hundred one million, two thousand, two hundred thirteen".

Divisors: 1 43781 50273 2201002213