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284672930 = 2528467293
BaseRepresentation
bin10000111101111…
…100001110100010
3201211122212211212
4100331330032202
51040334013210
644125310122
710024452143
oct2075741642
9654585755
10284672930
11136765a93
127b405342
1346c92629
1429b43aca
1519ed2805
hex10f7c3a2

284672930 has 8 divisors (see below), whose sum is σ = 512411292. Its totient is φ = 113869168.

The previous prime is 284672929. The next prime is 284672957. The reversal of 284672930 is 39276482.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 284495689 + 177241 = 16867^2 + 421^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14233637 + ... + 14233656.

Almost surely, 2284672930 is an apocalyptic number.

284672930 is a deficient number, since it is larger than the sum of its proper divisors (227738362).

284672930 is a wasteful number, since it uses less digits than its factorization.

284672930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28467300.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 284672930 is about 16872.2532579380. The cubic root of 284672930 is about 657.8325978498.

The spelling of 284672930 in words is "two hundred eighty-four million, six hundred seventy-two thousand, nine hundred thirty".

Divisors: 1 2 5 10 28467293 56934586 142336465 284672930