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149649206 = 2719562591
BaseRepresentation
bin10001110101101…
…11011100110110
3101102120222010012
420322313130312
5301302233311
622503300222
73464666030
oct1072673466
9342528105
10149649206
1177522733
124214a672
1325008335
1415c36c50
15d21078b
hex8eb7736

149649206 has 16 divisors (see below), whose sum is σ = 270044160. Its totient is φ = 60759720.

The previous prime is 149649169. The next prime is 149649209. The reversal of 149649206 is 602946941.

149649206 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149649209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281030 + ... + 281561.

It is an arithmetic number, because the mean of its divisors is an integer number (16877760).

Almost surely, 2149649206 is an apocalyptic number.

149649206 is a deficient number, since it is larger than the sum of its proper divisors (120394954).

149649206 is a wasteful number, since it uses less digits than its factorization.

149649206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562619.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 149649206 is about 12233.1192261009. The cubic root of 149649206 is about 530.9147676785.

The spelling of 149649206 in words is "one hundred forty-nine million, six hundred forty-nine thousand, two hundred six".

Divisors: 1 2 7 14 19 38 133 266 562591 1125182 3938137 7876274 10689229 21378458 74824603 149649206