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730788864 = 21031329631
BaseRepresentation
bin101011100011101…
…111010000000000
31212221002220212020
4223203233100000
52444040220424
6200303201440
724052413531
oct5343572000
91787086766
10730788864
11345569543
121848a6280
13b852c460
146d0b0688
1544255079
hex2b8ef400

730788864 has 176 divisors, whose sum is σ = 2173422720. Its totient is φ = 216760320.

The previous prime is 730788859. The next prime is 730788869. The reversal of 730788864 is 468887037.

It is an interprime number because it is at equal distance from previous prime (730788859) and next prime (730788869).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730788869) 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 15 ways as a sum of consecutive naturals, for example, 1157829 + ... + 1158459.

Almost surely, 2730788864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 730788864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1086711360).

730788864 is an abundant number, since it is smaller than the sum of its proper divisors (1442633856).

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

730788864 is a wasteful number, since it uses less digits than its factorization.

730788864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 730788864 is about 27033.1068136831. The cubic root of 730788864 is about 900.7355567013.

The spelling of 730788864 in words is "seven hundred thirty million, seven hundred eighty-eight thousand, eight hundred sixty-four".