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731230080 = 27357411327
BaseRepresentation
bin101011100101011…
…010111110000000
31212221221100002120
4223211122332000
52444143330310
6200320444240
724056232060
oct5345327600
91787840076
10731230080
1134583aa89
12184a79680
13b8655229
146d1873a0
15442e0b70
hex2b95af80

731230080 has 256 divisors, whose sum is σ = 2730792960. Its totient is φ = 162938880.

The previous prime is 731230069. The next prime is 731230081. The reversal of 731230080 is 80032137.

731230080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×7312300803 (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 731230080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731230081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 550377 + ... + 551703.

It is an arithmetic number, because the mean of its divisors is an integer number (10667160).

Almost surely, 2731230080 is an apocalyptic number.

731230080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731230080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365396480).

731230080 is an abundant number, since it is smaller than the sum of its proper divisors (1999562880).

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

731230080 is a wasteful number, since it uses less digits than its factorization.

731230080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1385 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 731230080 is about 27041.2662425412. The cubic root of 731230080 is about 900.9167941762.

The spelling of 731230080 in words is "seven hundred thirty-one million, two hundred thirty thousand, eighty".