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427478212 = 22729701751
BaseRepresentation
bin11001011110101…
…100110011000100
31002210101010212101
4121132230303010
51333413300322
6110230201444
713410335110
oct3136546304
91083333771
10427478212
111aa333787
12bb1b3284
136a7427b5
1440ab8740
15277e0327
hex197accc4

427478212 has 48 divisors (see below), whose sum is σ = 886878720. Its totient is φ = 176400000.

The previous prime is 427478203. The next prime is 427478213. The reversal of 427478212 is 212874724.

It is not an unprimeable number, because it can be changed into a prime (427478213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 568837 + ... + 569587.

It is an arithmetic number, because the mean of its divisors is an integer number (18476640).

Almost surely, 2427478212 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 427478212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443439360).

427478212 is an abundant number, since it is smaller than the sum of its proper divisors (459400508).

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

427478212 is a wasteful number, since it uses less digits than its factorization.

427478212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492 (or 1490 counting only the distinct ones).

The product of its digits is 50176, while the sum is 37.

The square root of 427478212 is about 20675.5462322039. The cubic root of 427478212 is about 753.3058291748.

The spelling of 427478212 in words is "four hundred twenty-seven million, four hundred seventy-eight thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 701 751 812 1402 1502 2804 3004 4907 5257 9814 10514 19628 20329 21028 21779 40658 43558 81316 87116 142303 152453 284606 304906 526451 569212 609812 1052902 2105804 3685157 7370314 14740628 15267079 30534158 61068316 106869553 213739106 427478212