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147967028 = 22112305717
BaseRepresentation
bin10001101000111…
…00110000110100
3101022102111121022
420310130300310
5300334421103
622403240312
73444461516
oct1064346064
9338374538
10147967028
1176583900
1241679098
1324869771
1415919bb6
15cecc138
hex8d1cc34

147967028 has 18 divisors (see below), whose sum is σ = 284623458. Its totient is φ = 67257520.

The previous prime is 147966977. The next prime is 147967067. The reversal of 147967028 is 820769741.

It can be written as a sum of positive squares in only one way, i.e., 146942884 + 1024144 = 12122^2 + 1012^2 .

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a self number, because there is not a number n which added to its sum of digits gives 147967028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152375 + ... + 153342.

Almost surely, 2147967028 is an apocalyptic number.

It is an amenable number.

147967028 is a deficient number, since it is larger than the sum of its proper divisors (136656430).

147967028 is a wasteful number, since it uses less digits than its factorization.

147967028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305743 (or 305730 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 147967028 is about 12164.1698442598. The cubic root of 147967028 is about 528.9179633197.

The spelling of 147967028 in words is "one hundred forty-seven million, nine hundred sixty-seven thousand, twenty-eight".

Divisors: 1 2 4 11 22 44 121 242 484 305717 611434 1222868 3362887 6725774 13451548 36991757 73983514 147967028