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20146282 = 213774857
BaseRepresentation
bin100110011011…
…0100001101010
31101220112111121
41030312201222
520124140112
61555445454
7333145342
oct114664152
941815447
1020146282
1110410222
1268b688a
134234ba0
142965d22
151b7e407
hex133686a

20146282 has 8 divisors (see below), whose sum is σ = 32544036. Its totient is φ = 9298272.

The previous prime is 20146279. The next prime is 20146319. The reversal of 20146282 is 28264102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19722481 + 423801 = 4441^2 + 651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387403 + ... + 387454.

Almost surely, 220146282 is an apocalyptic number.

20146282 is a deficient number, since it is larger than the sum of its proper divisors (12397754).

20146282 is a wasteful number, since it uses less digits than its factorization.

20146282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774872.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 20146282 is about 4488.4609834552. The cubic root of 20146282 is about 272.1019387952.

The spelling of 20146282 in words is "twenty million, one hundred forty-six thousand, two hundred eighty-two".

Divisors: 1 2 13 26 774857 1549714 10073141 20146282