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730427740 = 22575217341
BaseRepresentation
bin101011100010010…
…111000101011100
31212220102120111021
4223202113011130
52443442141430
6200251333524
724046350640
oct5342270534
91786376437
10730427740
11345342199
121847512a4
13b8433c83
146d018c20
15441d307a
hex2b89715c

730427740 has 24 divisors (see below), whose sum is σ = 1753026912. Its totient is φ = 250432320.

The previous prime is 730427701. The next prime is 730427741. The reversal of 730427740 is 47724037.

It is a happy number.

730427740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 730427696 and 730427705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730427741) 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, 2608531 + ... + 2608810.

It is an arithmetic number, because the mean of its divisors is an integer number (73042788).

Almost surely, 2730427740 is an apocalyptic number.

730427740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

730427740 is an abundant number, since it is smaller than the sum of its proper divisors (1022599172).

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

730427740 is a wasteful number, since it uses less digits than its factorization.

730427740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5217357 (or 5217355 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 730427740 is about 27026.4266968462. The cubic root of 730427740 is about 900.5871641732.

The spelling of 730427740 in words is "seven hundred thirty million, four hundred twenty-seven thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 5217341 10434682 20869364 26086705 36521387 52173410 73042774 104346820 146085548 182606935 365213870 730427740