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1368486757 = 111737919309
BaseRepresentation
bin101000110010001…
…0111001101100101
310112101001022220201
41101210113031211
510300313034012
6343443230501
745624642211
oct12144271545
93471038821
101368486757
116425253a0
12322378431
1318a696aa1
14cda6b941
158021c857
hex51917365

1368486757 has 16 divisors (see below), whose sum is σ = 1584964800. Its totient is φ = 1167747840.

The previous prime is 1368486751. The next prime is 1368486787. The reversal of 1368486757 is 7576848631.

It is a cyclic number.

It is not a de Polignac number, because 1368486757 - 27 = 1368486629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1368486698 and 1368486707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368486751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61219 + ... + 80527.

It is an arithmetic number, because the mean of its divisors is an integer number (99060300).

Almost surely, 21368486757 is an apocalyptic number.

1368486757 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1368486757 is a deficient number, since it is larger than the sum of its proper divisors (216478043).

1368486757 is a wasteful number, since it uses less digits than its factorization.

1368486757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19716.

The product of its digits is 6773760, while the sum is 55.

The square root of 1368486757 is about 36993.0636336057. The cubic root of 1368486757 is about 1110.2314689212.

The spelling of 1368486757 in words is "one billion, three hundred sixty-eight million, four hundred eighty-six thousand, seven hundred fifty-seven".

Divisors: 1 11 17 187 379 4169 6443 19309 70873 212399 328253 3610783 7318111 80499221 124407887 1368486757