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1214242213 = 4371397721
BaseRepresentation
bin100100001011111…
…1101110110100101
310010121210220011211
41020113331312211
54441321222323
6320253231421
742042613522
oct11027756645
93117726154
101214242213
11573454168
1229a792571
1316473cc22
14b739a149
157190070d
hex485fdda5

1214242213 has 8 divisors (see below), whose sum is σ = 1259983296. Its totient is φ = 1169296800.

The previous prime is 1214242207. The next prime is 1214242223. The reversal of 1214242213 is 3122424121.

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 1214242213 - 217 = 1214111141 is a prime.

It is a super-2 number, since 2×12142422132 = 2948768303662274738, which contains 22 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 (1214242223) 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, 195808 + ... + 201913.

It is an arithmetic number, because the mean of its divisors is an integer number (157497912).

Almost surely, 21214242213 is an apocalyptic number.

It is an amenable number.

1214242213 is a deficient number, since it is larger than the sum of its proper divisors (45741083).

1214242213 is an equidigital number, since it uses as much as digits as its factorization.

1214242213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397835.

The product of its digits is 768, while the sum is 22.

The square root of 1214242213 is about 34845.9784336729. The cubic root of 1214242213 is about 1066.8461042638.

Adding to 1214242213 its reverse (3122424121), we get a palindrome (4336666334).

The spelling of 1214242213 in words is "one billion, two hundred fourteen million, two hundred forty-two thousand, two hundred thirteen".

Divisors: 1 43 71 3053 397721 17102003 28238191 1214242213