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285029133312 = 21037211215649
BaseRepresentation
bin1000010010111010000…
…11110110110000000000
31000020201011121012110010
410021131003312300000
514132214424231222
6334535055304520
726410200441600
oct4113503666000
91006634535403
10285029133312
11aa975573600
12472a781b140
1320b55343201
14db1cb42c00
15763320180c
hex425d0f6c00

285029133312 has 396 divisors, whose sum is σ = 971446018200. Its totient is φ = 74028810240.

The previous prime is 285029133307. The next prime is 285029133331. The reversal of 285029133312 is 213331920582.

It is a super-3 number, since 3×2850291333123 (a number of 35 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18206064 + ... + 18221712.

Almost surely, 2285029133312 is an apocalyptic number.

285029133312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285029133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485723009100).

285029133312 is an abundant number, since it is smaller than the sum of its proper divisors (686416884888).

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

285029133312 is a wasteful number, since it uses less digits than its factorization.

285029133312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15708 (or 15672 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 285029133312 in words is "two hundred eighty-five billion, twenty-nine million, one hundred thirty-three thousand, three hundred twelve".