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1368078271 = 71511294303
BaseRepresentation
bin101000110001011…
…0011011110111111
310112100021120120121
41101202303132333
510300212001041
6343430355411
745621321250
oct12142633677
93470246517
101368078271
116422764aa
123221bbb67
1318a582b91
14cd9a2b27
158018b7d1
hex518b37bf

1368078271 has 8 divisors (see below), whose sum is σ = 1573873664. Its totient is φ = 1164871800.

The previous prime is 1368078227. The next prime is 1368078311. The reversal of 1368078271 is 1728708631.

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

It is a cyclic number.

It is not a de Polignac number, because 1368078271 - 211 = 1368076223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368078211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646095 + ... + 648208.

It is an arithmetic number, because the mean of its divisors is an integer number (196734208).

Almost surely, 21368078271 is an apocalyptic number.

1368078271 is a deficient number, since it is larger than the sum of its proper divisors (205795393).

1368078271 is a wasteful number, since it uses less digits than its factorization.

1368078271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294461.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 1368078271 is about 36987.5421054171. The cubic root of 1368078271 is about 1110.1209918703.

The spelling of 1368078271 in words is "one billion, three hundred sixty-eight million, seventy-eight thousand, two hundred seventy-one".

Divisors: 1 7 151 1057 1294303 9060121 195439753 1368078271