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149882028 = 22328144449
BaseRepresentation
bin10001110111100…
…00010010101100
3101110000210111020
420323300102230
5301332211103
622512254140
73466655562
oct1073602254
9343023436
10149882028
117767164a
1242241350
132508a2ba
1415c97a32
15d259753
hex8ef04ac

149882028 has 24 divisors (see below), whose sum is σ = 350977200. Its totient is φ = 49781760.

The previous prime is 149882027. The next prime is 149882041. The reversal of 149882028 is 820288941.

It is not an unprimeable number, because it can be changed into a prime (149882023) 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 7 ways as a sum of consecutive naturals, for example, 18853 + ... + 25596.

It is an arithmetic number, because the mean of its divisors is an integer number (14624050).

Almost surely, 2149882028 is an apocalyptic number.

It is an amenable number.

149882028 is an abundant number, since it is smaller than the sum of its proper divisors (201095172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149882028 is a wasteful number, since it uses less digits than its factorization.

149882028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44737 (or 44735 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 149882028 is about 12242.6315798524. The cubic root of 149882028 is about 531.1899547730.

The spelling of 149882028 in words is "one hundred forty-nine million, eight hundred eighty-two thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 281 562 843 1124 1686 3372 44449 88898 133347 177796 266694 533388 12490169 24980338 37470507 49960676 74941014 149882028