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284517042 = 23211224737
BaseRepresentation
bin10000111101010…
…110001010110010
3201211100222000020
4100331112022302
51040314021132
644122104310
710023232515
oct2075261262
9654328006
10284517042
11136669957
127b34b096
1346c396a4
1429b02d7c
1519ea152c
hex10f562b2

284517042 has 16 divisors (see below), whose sum is σ = 571733472. Its totient is φ = 94389120.

The previous prime is 284517031. The next prime is 284517047. The reversal of 284517042 is 240715482.

It is a junction number, because it is equal to n+sod(n) for n = 284516994 and 284517012.

It is not an unprimeable number, because it can be changed into a prime (284517047) 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, 111103 + ... + 113634.

It is an arithmetic number, because the mean of its divisors is an integer number (35733342).

Almost surely, 2284517042 is an apocalyptic number.

284517042 is an abundant number, since it is smaller than the sum of its proper divisors (287216430).

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

284517042 is a wasteful number, since it uses less digits than its factorization.

284517042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224953.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 284517042 is about 16867.6329696849. The cubic root of 284517042 is about 657.7124986980.

The spelling of 284517042 in words is "two hundred eighty-four million, five hundred seventeen thousand, forty-two".

Divisors: 1 2 3 6 211 422 633 1266 224737 449474 674211 1348422 47419507 94839014 142258521 284517042