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149128366 = 2233241921
BaseRepresentation
bin10001110001110…
…00010010101110
3101101121111122211
420320320102232
5301134101431
622444201034
73460366402
oct1070702256
9341544584
10149128366
11771a7392
1241b3917a
1324b8524a
1415b3d102
15d15b2b1
hex8e384ae

149128366 has 8 divisors (see below), whose sum is σ = 233418384. Its totient is φ = 71322240.

The previous prime is 149128363. The next prime is 149128373. The reversal of 149128366 is 663821941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149128363) 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, 1620915 + ... + 1621006.

It is an arithmetic number, because the mean of its divisors is an integer number (29177298).

Almost surely, 2149128366 is an apocalyptic number.

149128366 is a deficient number, since it is larger than the sum of its proper divisors (84290018).

149128366 is a wasteful number, since it uses less digits than its factorization.

149128366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241946.

The product of its digits is 62208, while the sum is 40.

The square root of 149128366 is about 12211.8125599765. The cubic root of 149128366 is about 530.2981187405.

The spelling of 149128366 in words is "one hundred forty-nine million, one hundred twenty-eight thousand, three hundred sixty-six".

Divisors: 1 2 23 46 3241921 6483842 74564183 149128366