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285057482752 = 222721973
BaseRepresentation
bin1000010010111101100…
…00000000000000000000
31000020210010221111120101
410021132300000000000
514132244203422002
6334541551052144
726410663424200
oct4113660000000
91006703844511
10285057482752
11aa98a576999
12472b5211054
1320b5b18ab23
14db22802400
157635951587
hex425ec00000

285057482752 has 276 divisors, whose sum is σ = 707662886520. Its totient is φ = 114152177664.

The previous prime is 285057482747. The next prime is 285057482803. The reversal of 285057482752 is 257284750582.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 285057482693 and 285057482702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3904896988 + ... + 3904897060.

Almost surely, 2285057482752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285057482752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353831443260).

285057482752 is an abundant number, since it is smaller than the sum of its proper divisors (422605403768).

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

285057482752 is an frugal number, since it uses more digits than its factorization.

285057482752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 12544000, while the sum is 55.

The spelling of 285057482752 in words is "two hundred eighty-five billion, fifty-seven million, four hundred eighty-two thousand, seven hundred fifty-two".