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1205080242 = 23200846707
BaseRepresentation
bin100011111010100…
…0001000010110010
310002222120102022120
41013311001002302
54432000031432
6315325015110
741602004322
oct10765010262
93088512276
101205080242
11569266693
122976b4496
13162882942
14b6093282
1570be0c2c
hex47d410b2

1205080242 has 8 divisors (see below), whose sum is σ = 2410160496. Its totient is φ = 401693412.

The previous prime is 1205080223. The next prime is 1205080249. The reversal of 1205080242 is 2420805021.

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

1205080242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1205080249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100423348 + ... + 100423359.

It is an arithmetic number, because the mean of its divisors is an integer number (301270062).

Almost surely, 21205080242 is an apocalyptic number.

1205080242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1205080242 is a wasteful number, since it uses less digits than its factorization.

1205080242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200846712.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1205080242 is about 34714.2656842976. The cubic root of 1205080242 is about 1064.1560586903.

Adding to 1205080242 its reverse (2420805021), we get a palindrome (3625885263).

The spelling of 1205080242 in words is "one billion, two hundred five million, eighty thousand, two hundred forty-two".

Divisors: 1 2 3 6 200846707 401693414 602540121 1205080242