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149271382 = 21330718701
BaseRepresentation
bin10001110010110…
…11001101010110
3101101212202211201
420321123031112
5301203141012
622451223114
73461533351
oct1071331526
9341782751
10149271382
1177294887
1241ba7a9a
1324c05380
1415b79298
15d188857
hex8e5b356

149271382 has 16 divisors (see below), whose sum is σ = 241929072. Its totient is φ = 68666400.

The previous prime is 149271379. The next prime is 149271383. The reversal of 149271382 is 283172941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149271383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1369 + ... + 17332.

It is an arithmetic number, because the mean of its divisors is an integer number (15120567).

Almost surely, 2149271382 is an apocalyptic number.

149271382 is a deficient number, since it is larger than the sum of its proper divisors (92657690).

149271382 is a wasteful number, since it uses less digits than its factorization.

149271382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19023.

The product of its digits is 24192, while the sum is 37.

The square root of 149271382 is about 12217.6667985340. Note that the first 3 decimals coincide. The cubic root of 149271382 is about 530.4675854590.

The spelling of 149271382 in words is "one hundred forty-nine million, two hundred seventy-one thousand, three hundred eighty-two".

Divisors: 1 2 13 26 307 614 3991 7982 18701 37402 243113 486226 5741207 11482414 74635691 149271382