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1111020213 = 3794687849
BaseRepresentation
bin100001000111000…
…1101001010110101
32212102120200012210
41002032031022311
54233410121323
6302125004033
736350341662
oct10216151265
92772520183
101111020213
11520161a26
122700b3619
1314923ba14
14a77aaa69
1567811293
hex4238d2b5

1111020213 has 8 divisors (see below), whose sum is σ = 1500112000. Its totient is φ = 731304288.

The previous prime is 1111020179. The next prime is 1111020217. The reversal of 1111020213 is 3120201111.

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

It is not a de Polignac number, because 1111020213 - 26 = 1111020149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111020217) 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, 2343688 + ... + 2344161.

It is an arithmetic number, because the mean of its divisors is an integer number (187514000).

Almost surely, 21111020213 is an apocalyptic number.

It is an amenable number.

1111020213 is a deficient number, since it is larger than the sum of its proper divisors (389091787).

1111020213 is an equidigital number, since it uses as much as digits as its factorization.

1111020213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687931.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1111020213 is about 33331.9698337797. The cubic root of 1111020213 is about 1035.7159237245.

Adding to 1111020213 its reverse (3120201111), we get a palindrome (4231221324).

The spelling of 1111020213 in words is "one billion, one hundred eleven million, twenty thousand, two hundred thirteen".

Divisors: 1 3 79 237 4687849 14063547 370340071 1111020213