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149225049 = 3216580561
BaseRepresentation
bin10001110010011…
…11111001011001
3101101210102021200
420321033321121
5301200200144
622450224413
73461251311
oct1071177131
9341712250
10149225049
1177262a96
1241b85109
1324bba25c
1415b66441
15d179c69
hex8e4fe59

149225049 has 6 divisors (see below), whose sum is σ = 215547306. Its totient is φ = 99483360.

The previous prime is 149225029. The next prime is 149225059. The reversal of 149225049 is 940522941.

149225049 is a `hidden beast` number, since 149 + 2 + 2 + 504 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 110250000 + 38975049 = 10500^2 + 6243^2 .

It is not a de Polignac number, because 149225049 - 220 = 148176473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149225009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8290272 + ... + 8290289.

It is an arithmetic number, because the mean of its divisors is an integer number (35924551).

Almost surely, 2149225049 is an apocalyptic number.

It is an amenable number.

149225049 is a deficient number, since it is larger than the sum of its proper divisors (66322257).

149225049 is a wasteful number, since it uses less digits than its factorization.

149225049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16580567 (or 16580564 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 149225049 is about 12215.7705037382. The cubic root of 149225049 is about 530.4126950580.

The spelling of 149225049 in words is "one hundred forty-nine million, two hundred twenty-five thousand, forty-nine".

Divisors: 1 3 9 16580561 49741683 149225049