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1868006065 = 52316243531
BaseRepresentation
bin110111101010111…
…1000001010110001
311211011222112120211
41233111320022301
512311202143230
6505205504121
764201534552
oct15725701261
94734875524
101868006065
11879493672
12441712041
1323a011143
1413a13a329
15adedd42a
hex6f5782b1

1868006065 has 8 divisors (see below), whose sum is σ = 2339068608. Its totient is φ = 1429430640.

The previous prime is 1868006057. The next prime is 1868006069. The reversal of 1868006065 is 5606008681.

It is a happy number.

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

It is not a de Polignac number, because 1868006065 - 23 = 1868006057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1868006069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8121651 + ... + 8121880.

It is an arithmetic number, because the mean of its divisors is an integer number (292383576).

Almost surely, 21868006065 is an apocalyptic number.

It is an amenable number.

1868006065 is a deficient number, since it is larger than the sum of its proper divisors (471062543).

1868006065 is a wasteful number, since it uses less digits than its factorization.

1868006065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16243559.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1868006065 is about 43220.4357335740. The cubic root of 1868006065 is about 1231.5709244778.

The spelling of 1868006065 in words is "one billion, eight hundred sixty-eight million, six thousand, sixty-five".

Divisors: 1 5 23 115 16243531 81217655 373601213 1868006065