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285051004 = 22710180393
BaseRepresentation
bin10000111111011…
…000100001111100
3201212101002110121
4100333120201330
51040433113004
644141344324
710030615330
oct2077304174
9655332417
10285051004
111369a4047
127b5680a4
1347095744
1429c017c0
151a059854
hex10fd887c

285051004 has 12 divisors (see below), whose sum is σ = 570102064. Its totient is φ = 122164704.

The previous prime is 285051001. The next prime is 285051017. The reversal of 285051004 is 400150582.

285051004 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 285051004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285051001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5090169 + ... + 5090224.

Almost surely, 2285051004 is an apocalyptic number.

It is an amenable number.

285051004 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.

285051004 is a wasteful number, since it uses less digits than its factorization.

285051004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10180404 (or 10180402 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 285051004 is about 16883.4535566631. The cubic root of 285051004 is about 658.1236914207.

The spelling of 285051004 in words is "two hundred eighty-five million, fifty-one thousand, four".

Divisors: 1 2 4 7 14 28 10180393 20360786 40721572 71262751 142525502 285051004