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730984970 = 25281260137
BaseRepresentation
bin101011100100011…
…111001000001010
31212221110212212102
4223210133020022
52444113004340
6200311313402
724054161342
oct5344371012
91787425772
10730984970
11345692911
1218497b862
13b859a7b1
146d121d22
1544293215
hex2b91f20a

730984970 has 16 divisors (see below), whose sum is σ = 1320460488. Its totient is φ = 291352320.

The previous prime is 730984951. The next prime is 730984979. The reversal of 730984970 is 79489037.

It can be written as a sum of positive squares in 4 ways, for example, as 565631089 + 165353881 = 23783^2 + 12859^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (730984979) 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, 127259 + ... + 132878.

Almost surely, 2730984970 is an apocalyptic number.

730984970 is a deficient number, since it is larger than the sum of its proper divisors (589475518).

730984970 is a wasteful number, since it uses less digits than its factorization.

730984970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260425.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 730984970 is about 27036.7337154472. The cubic root of 730984970 is about 900.8161198014.

The spelling of 730984970 in words is "seven hundred thirty million, nine hundred eighty-four thousand, nine hundred seventy".

Divisors: 1 2 5 10 281 562 1405 2810 260137 520274 1300685 2601370 73098497 146196994 365492485 730984970