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269381149 = 1971367417
BaseRepresentation
bin10000000011100…
…110111000011101
3200202212222110121
4100003212320131
51022430144044
642421434541
76450462532
oct2003467035
9622788417
10269381149
11129071054
127626ba51
1343a6a23b
1427ac2d89
15189b1984
hex100e6e1d

269381149 has 4 divisors (see below), whose sum is σ = 270748764. Its totient is φ = 268013536.

The previous prime is 269381117. The next prime is 269381209. The reversal of 269381149 is 941183962.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 247055524 + 22325625 = 15718^2 + 4725^2 .

It is a cyclic number.

It is not a de Polignac number, because 269381149 - 25 = 269381117 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 (269381549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683512 + ... + 683905.

It is an arithmetic number, because the mean of its divisors is an integer number (67687191).

Almost surely, 2269381149 is an apocalyptic number.

It is an amenable number.

269381149 is a deficient number, since it is larger than the sum of its proper divisors (1367615).

269381149 is a wasteful number, since it uses less digits than its factorization.

269381149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367614.

The product of its digits is 93312, while the sum is 43.

The square root of 269381149 is about 16412.8348861493. The cubic root of 269381149 is about 645.8362240463.

The spelling of 269381149 in words is "two hundred sixty-nine million, three hundred eighty-one thousand, one hundred forty-nine".

Divisors: 1 197 1367417 269381149