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2205211013 = 9871223403
BaseRepresentation
bin1000001101110000…
…1101100110000101
312200200111022210222
42003130031212011
514004013223023
61002453154125
7105434661425
oct20334154605
95620438728
102205211013
11a31869745
1251662b945
13291b374b5
1416cc36485
15cd8eacc8
hex8370d985

2205211013 has 4 divisors (see below), whose sum is σ = 2205444288. Its totient is φ = 2204977740.

The previous prime is 2205210983. The next prime is 2205211087. The reversal of 2205211013 is 3101125022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3101125022 = 21550562511.

It is a cyclic number.

It is not a de Polignac number, because 2205211013 - 28 = 2205210757 is a prime.

It is a super-2 number, since 2×22052110132 = 9725911223712972338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2205210982 and 2205211000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205211093) 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, 101831 + ... + 121572.

It is an arithmetic number, because the mean of its divisors is an integer number (551361072).

Almost surely, 22205211013 is an apocalyptic number.

It is an amenable number.

2205211013 is a deficient number, since it is larger than the sum of its proper divisors (233275).

2205211013 is an equidigital number, since it uses as much as digits as its factorization.

2205211013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233274.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2205211013 is about 46959.6743280871. The cubic root of 2205211013 is about 1301.6175157741.

Adding to 2205211013 its reverse (3101125022), we get a palindrome (5306336035).

The spelling of 2205211013 in words is "two billion, two hundred five million, two hundred eleven thousand, thirteen".

Divisors: 1 9871 223403 2205211013