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13827069 = 321790373
BaseRepresentation
bin110100101111…
…101111111101
3222000111011200
4310233233331
512014431234
61212210113
7225346104
oct64575775
928014150
1013827069
117894533
124769939
132b317c9
141b9d03b
151331d99
hexd2fbfd

13827069 has 12 divisors (see below), whose sum is σ = 21147516. Its totient is φ = 8675712.

The previous prime is 13827067. The next prime is 13827101. The reversal of 13827069 is 96072831.

It can be written as a sum of positive squares in 2 ways, for example, as 3980025 + 9847044 = 1995^2 + 3138^2 .

It is not a de Polignac number, because 13827069 - 21 = 13827067 is a prime.

It is a super-2 number, since 2×138270692 = 382375674261522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13827061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45034 + ... + 45339.

It is an arithmetic number, because the mean of its divisors is an integer number (1762293).

Almost surely, 213827069 is an apocalyptic number.

It is an amenable number.

13827069 is a deficient number, since it is larger than the sum of its proper divisors (7320447).

13827069 is a wasteful number, since it uses less digits than its factorization.

13827069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90396 (or 90393 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 13827069 is about 3718.4767042433. The cubic root of 13827069 is about 240.0177591025.

The spelling of 13827069 in words is "thirteen million, eight hundred twenty-seven thousand, sixty-nine".

Divisors: 1 3 9 17 51 153 90373 271119 813357 1536341 4609023 13827069