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1664284482 = 23475327691
BaseRepresentation
bin110001100110010…
…1111011101000010
311021222122102010000
41203030233131002
511402024100412
6433051220430
756146120230
oct14314573502
94258572100
101664284482
11784499623
123a5447716
13206a52c23
1411b069950
159b19b4dc
hex6332f742

1664284482 has 80 divisors (see below), whose sum is σ = 4342548672. Its totient is φ = 466521120.

The previous prime is 1664284477. The next prime is 1664284529. The reversal of 1664284482 is 2844824661.

1664284482 is a `hidden beast` number, since 166 + 4 + 2 + 8 + 4 + 482 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 46257 + ... + 73947.

Almost surely, 21664284482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1664284482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2171274336).

1664284482 is an abundant number, since it is smaller than the sum of its proper divisors (2678264190).

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

1664284482 is a wasteful number, since it uses less digits than its factorization.

1664284482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27765 (or 27756 counting only the distinct ones).

The product of its digits is 589824, while the sum is 45.

The square root of 1664284482 is about 40795.6429291168. The cubic root of 1664284482 is about 1185.0659537078.

It can be divided in two parts, 16642 and 84482, that added together give a square (101124 = 3182).

The spelling of 1664284482 in words is "one billion, six hundred sixty-four million, two hundred eighty-four thousand, four hundred eighty-two".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 53 54 63 81 106 126 159 162 189 318 371 378 477 567 742 954 1113 1134 1431 2226 2862 3339 4293 6678 8586 10017 20034 27691 30051 55382 60102 83073 166146 193837 249219 387674 498438 581511 747657 1163022 1467623 1495314 1744533 2242971 2935246 3489066 4402869 4485942 5233599 8805738 10273361 10467198 13208607 15700797 20546722 26417214 30820083 31401594 39625821 61640166 79251642 92460249 118877463 184920498 237754926 277380747 554761494 832142241 1664284482