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1204304213 = 7331532137
BaseRepresentation
bin100011111001000…
…0011100101010101
310002221002222210202
41013302003211111
54431300213323
6315300230245
741562263000
oct10762034525
93087088722
101204304213
11568886642
1229739b385
13162670658
14b5d30537
1570adad28
hex47c83955

1204304213 has 32 divisors (see below), whose sum is σ = 1477785600. Its totient is φ = 979655040.

The previous prime is 1204304183. The next prime is 1204304279. The reversal of 1204304213 is 3124034021.

It is not a de Polignac number, because 1204304213 - 220 = 1203255637 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 (1204304713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562481 + ... + 564617.

It is an arithmetic number, because the mean of its divisors is an integer number (46180800).

Almost surely, 21204304213 is an apocalyptic number.

It is an amenable number.

1204304213 is a deficient number, since it is larger than the sum of its proper divisors (273481387).

1204304213 is an equidigital number, since it uses as much as digits as its factorization.

1204304213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242 (or 2228 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1204304213 is about 34703.0865053816. The cubic root of 1204304213 is about 1063.9275833678.

Adding to 1204304213 its reverse (3124034021), we get a palindrome (4328338234).

The spelling of 1204304213 in words is "one billion, two hundred four million, three hundred four thousand, two hundred thirteen".

Divisors: 1 7 31 49 53 217 343 371 1519 1643 2137 2597 10633 11501 14959 18179 66247 80507 104713 113261 463729 563549 732991 792827 3246103 3511091 5549789 22722721 24577637 38848523 172043459 1204304213