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149263028 = 2239079551
BaseRepresentation
bin10001110010110…
…01001010110100
3101101212100101022
420321121022310
5301202404103
622451120312
73461500115
oct1071311264
9341770338
10149263028
1177289582
1241ba3098
1324c01625
1415b7620c
15d186138
hex8e592b4

149263028 has 12 divisors (see below), whose sum is σ = 261304512. Its totient is φ = 74604600.

The previous prime is 149263021. The next prime is 149263033. The reversal of 149263028 is 820362941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149263021) 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, 10853 + ... + 20403.

It is an arithmetic number, because the mean of its divisors is an integer number (21775376).

Almost surely, 2149263028 is an apocalyptic number.

It is an amenable number.

149263028 is a deficient number, since it is larger than the sum of its proper divisors (112041484).

149263028 is a wasteful number, since it uses less digits than its factorization.

149263028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13462 (or 13460 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 149263028 is about 12217.3249117800. The cubic root of 149263028 is about 530.4576893694.

The spelling of 149263028 in words is "one hundred forty-nine million, two hundred sixty-three thousand, twenty-eight".

Divisors: 1 2 4 3907 7814 9551 15628 19102 38204 37315757 74631514 149263028