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147945028 = 22711480341
BaseRepresentation
bin10001101000101…
…11011001000100
3101022101101102111
420310113121010
5300333220103
622402550404
73444340420
oct1064273104
9338341374
10147945028
1176569320
1241668404
132485c74a
1415911b80
15cec586d
hex8d17644

147945028 has 24 divisors (see below), whose sum is σ = 322789824. Its totient is φ = 57640800.

The previous prime is 147945019. The next prime is 147945047. The reversal of 147945028 is 820549741.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239863 + ... + 240478.

It is an arithmetic number, because the mean of its divisors is an integer number (13449576).

Almost surely, 2147945028 is an apocalyptic number.

It is an amenable number.

147945028 is an abundant number, since it is smaller than the sum of its proper divisors (174844796).

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

147945028 is a wasteful number, since it uses less digits than its factorization.

147945028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480363 (or 480361 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 147945028 is about 12163.2655154773. The cubic root of 147945028 is about 528.8917485336.

The spelling of 147945028 in words is "one hundred forty-seven million, nine hundred forty-five thousand, twenty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 480341 960682 1921364 3362387 5283751 6724774 10567502 13449548 21135004 36986257 73972514 147945028