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149480205 = 3577120051
BaseRepresentation
bin10001110100011…
…10001100001101
3101102021101021220
420322032030031
5301231331310
622455513553
73463363230
oct1072161415
9342241256
10149480205
1177417766
12420888b9
1324c79434
1415bd1417
15d1ca670
hex8e8e30d

149480205 has 32 divisors (see below), whose sum is σ = 277198848. Its totient is φ = 67368000.

The previous prime is 149480203. The next prime is 149480209. The reversal of 149480205 is 502084941.

It is not a de Polignac number, because 149480205 - 21 = 149480203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149480203) 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 31 ways as a sum of consecutive naturals, for example, 2571 + ... + 17480.

It is an arithmetic number, because the mean of its divisors is an integer number (8662464).

Almost surely, 2149480205 is an apocalyptic number.

149480205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149480205 is a deficient number, since it is larger than the sum of its proper divisors (127718643).

149480205 is a wasteful number, since it uses less digits than its factorization.

149480205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20137.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 149480205 is about 12226.2097560937. The cubic root of 149480205 is about 530.7148358374.

The spelling of 149480205 in words is "one hundred forty-nine million, four hundred eighty thousand, two hundred five".

Divisors: 1 3 5 7 15 21 35 71 105 213 355 497 1065 1491 2485 7455 20051 60153 100255 140357 300765 421071 701785 1423621 2105355 4270863 7118105 9965347 21354315 29896041 49826735 149480205