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283742930 = 2528374293
BaseRepresentation
bin10000111010011…
…001001011010010
3201202220122010102
4100322121023102
51040114233210
644053332402
710013526602
oct2072311322
9652818112
10283742930
11136190299
127b037102
1346a28233
1429980c02
1519d9bea5
hex10e992d2

283742930 has 8 divisors (see below), whose sum is σ = 510737292. Its totient is φ = 113497168.

The previous prime is 283742929. The next prime is 283742959. The reversal of 283742930 is 39247382.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 251127409 + 32615521 = 15847^2 + 5711^2 .

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

It is an unprimeable number.

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, 14187137 + ... + 14187156.

Almost surely, 2283742930 is an apocalyptic number.

283742930 is a deficient number, since it is larger than the sum of its proper divisors (226994362).

283742930 is a wasteful number, since it uses less digits than its factorization.

283742930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28374300.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 283742930 is about 16844.6706705712. The cubic root of 283742930 is about 657.1154570221.

The spelling of 283742930 in words is "two hundred eighty-three million, seven hundred forty-two thousand, nine hundred thirty".

Divisors: 1 2 5 10 28374293 56748586 141871465 283742930