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149105349 = 3289186149
BaseRepresentation
bin10001110001100…
…10101011000101
3101101120100002100
420320302223011
5301132332344
622443502313
73460242321
oct1070625305
9341510070
10149105349
1177191068
1241b27999
1324b77923
1415b34981
15d154569
hex8e32ac5

149105349 has 12 divisors (see below), whose sum is σ = 217795500. Its totient is φ = 98286144.

The previous prime is 149105309. The next prime is 149105353. The reversal of 149105349 is 943501941.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 67076100 + 82029249 = 8190^2 + 9057^2 .

It is not a de Polignac number, because 149105349 - 28 = 149105093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149105309) 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 11 ways as a sum of consecutive naturals, for example, 92274 + ... + 93875.

It is an arithmetic number, because the mean of its divisors is an integer number (18149625).

Almost surely, 2149105349 is an apocalyptic number.

It is an amenable number.

149105349 is a deficient number, since it is larger than the sum of its proper divisors (68690151).

149105349 is a wasteful number, since it uses less digits than its factorization.

149105349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186244 (or 186241 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 149105349 is about 12210.8701164168. The cubic root of 149105349 is about 530.2708346403.

The spelling of 149105349 in words is "one hundred forty-nine million, one hundred five thousand, three hundred forty-nine".

Divisors: 1 3 9 89 267 801 186149 558447 1675341 16567261 49701783 149105349