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730870938 = 2347644507
BaseRepresentation
bin101011100100000…
…011010010011010
31212221021002110000
4223210003102122
52444100332223
6200305033430
724053205030
oct5344032232
91787232400
10730870938
11345615176
12184925876
13b855a915
146d0d2550
154426e543
hex2b90349a

730870938 has 40 divisors (see below), whose sum is σ = 1871651232. Its totient is φ = 208819944.

The previous prime is 730870927. The next prime is 730870939. The reversal of 730870938 is 839078037.

It is a junction number, because it is equal to n+sod(n) for n = 730870893 and 730870902.

It is not an unprimeable number, because it can be changed into a prime (730870939) 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 19 ways as a sum of consecutive naturals, for example, 321120 + ... + 323387.

Almost surely, 2730870938 is an apocalyptic number.

730870938 is an abundant number, since it is smaller than the sum of its proper divisors (1140780294).

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

730870938 is a wasteful number, since it uses less digits than its factorization.

730870938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644528 (or 644519 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 730870938 is about 27034.6247985801. The cubic root of 730870938 is about 900.7692756071.

The spelling of 730870938 in words is "seven hundred thirty million, eight hundred seventy thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 189 378 567 1134 644507 1289014 1933521 3867042 4511549 5800563 9023098 11601126 13534647 17401689 27069294 34803378 40603941 52205067 81207882 104410134 121811823 243623646 365435469 730870938