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1368081 = 3211131063
BaseRepresentation
bin101001110000000010001
32120111122200
411032000101
5322234311
645153413
714425401
oct5160021
92514580
101368081
11854950
1255b869
1338b920
14278801
151c0556
hex14e011

1368081 has 24 divisors (see below), whose sum is σ = 2323776. Its totient is φ = 764640.

The previous prime is 1368079. The next prime is 1368083. The reversal of 1368081 is 1808631.

It is an interprime number because it is at equal distance from previous prime (1368079) and next prime (1368083).

It is not a de Polignac number, because 1368081 - 21 = 1368079 is a prime.

It is a super-2 number, since 2×13680812 = 3743291245122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 756 + ... + 1818.

It is an arithmetic number, because the mean of its divisors is an integer number (96824).

21368081 is an apocalyptic number.

1368081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1368081 is a deficient number, since it is larger than the sum of its proper divisors (955695).

1368081 is a wasteful number, since it uses less digits than its factorization.

1368081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1368081 is about 1169.6499476339. The cubic root of 1368081 is about 111.0121730015.

The spelling of 1368081 in words is "one million, three hundred sixty-eight thousand, eighty-one".

Divisors: 1 3 9 11 13 33 39 99 117 143 429 1063 1287 3189 9567 11693 13819 35079 41457 105237 124371 152009 456027 1368081