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150028728 = 23318134537
BaseRepresentation
bin10001111000101…
…00000110111000
3101110022020201120
420330110012320
5301401404403
622515345240
73501136353
oct1074240670
9343266646
10150028728
1177761893
12422b2220
132510bcc5
1415cd529a
15d287e53
hex8f141b8

150028728 has 32 divisors (see below), whose sum is σ = 377154960. Its totient is φ = 49731840.

The previous prime is 150028727. The next prime is 150028741. The reversal of 150028728 is 827820051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150028727) 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, 12925 + ... + 21612.

Almost surely, 2150028728 is an apocalyptic number.

It is an amenable number.

150028728 is an abundant number, since it is smaller than the sum of its proper divisors (227126232).

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

150028728 is a wasteful number, since it uses less digits than its factorization.

150028728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34727 (or 34723 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 150028728 is about 12248.6214734557. The cubic root of 150028728 is about 531.3632024876.

Adding to 150028728 its reverse (827820051), we get a palindrome (977848779).

The spelling of 150028728 in words is "one hundred fifty million, twenty-eight thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 181 362 543 724 1086 1448 2172 4344 34537 69074 103611 138148 207222 276296 414444 828888 6251197 12502394 18753591 25004788 37507182 50009576 75014364 150028728