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20268282 = 233378047
BaseRepresentation
bin100110101010…
…0010011111010
31102010201212010
41031110103322
520142041112
62002230350
7334164126
oct115242372
942121763
1020268282
1110493951
1269553b6
134278588
142998586
151ba563c
hex13544fa

20268282 has 8 divisors (see below), whose sum is σ = 40536576. Its totient is φ = 6756092.

The previous prime is 20268271. The next prime is 20268293. The reversal of 20268282 is 28286202.

It is an interprime number because it is at equal distance from previous prime (20268271) and next prime (20268293).

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

20268282 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1689018 + ... + 1689029.

It is an arithmetic number, because the mean of its divisors is an integer number (5067072).

Almost surely, 220268282 is an apocalyptic number.

20268282 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20268282 is a wasteful number, since it uses less digits than its factorization.

20268282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378052.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 20268282 is about 4502.0308750607. The cubic root of 20268282 is about 272.6500904220.

The spelling of 20268282 in words is "twenty million, two hundred sixty-eight thousand, two hundred eighty-two".

Divisors: 1 2 3 6 3378047 6756094 10134141 20268282