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730904070 = 235139471979
BaseRepresentation
bin101011100100001…
…011011000000110
31212221022202220010
4223210023120012
52444102412240
6200305451050
724053403441
oct5344133006
91787282803
10730904070
11345638056
12184940a86
13b856ca20
146d100658
1544279280
hex2b90b606

730904070 has 64 divisors (see below), whose sum is σ = 1892056320. Its totient is φ = 179634048.

The previous prime is 730904063. The next prime is 730904071. The reversal of 730904070 is 70409037.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730904071) 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 31 ways as a sum of consecutive naturals, for example, 368341 + ... + 370319.

It is an arithmetic number, because the mean of its divisors is an integer number (29563380).

Almost surely, 2730904070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 730904070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (946028160).

730904070 is an abundant number, since it is smaller than the sum of its proper divisors (1161152250).

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

730904070 is a wasteful number, since it uses less digits than its factorization.

730904070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 730904070 is about 27035.2375613753. The cubic root of 730904070 is about 900.7828866909.

The spelling of 730904070 in words is "seven hundred thirty million, nine hundred four thousand, seventy".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 947 1894 1979 2841 3958 4735 5682 5937 9470 9895 11874 12311 14205 19790 24622 25727 28410 29685 36933 51454 59370 61555 73866 77181 123110 128635 154362 184665 257270 369330 385905 771810 1874113 3748226 5622339 9370565 11244678 18741130 24363469 28111695 48726938 56223390 73090407 121817345 146180814 243634690 365452035 730904070