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230725109 = 792920571
BaseRepresentation
bin11011100000010…
…01010111110101
3121002011001100102
431300021113311
5433031200414
634521123445
75501062646
oct1560112765
9532131312
10230725109
1110926920a
1265329585
1338a54344
14228dd6cd
15153c7ede
hexdc095f5

230725109 has 4 divisors (see below), whose sum is σ = 233645760. Its totient is φ = 227804460.

The previous prime is 230725097. The next prime is 230725123. The reversal of 230725109 is 901527032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230725109 - 28 = 230724853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230725129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460207 + ... + 1460364.

It is an arithmetic number, because the mean of its divisors is an integer number (58411440).

Almost surely, 2230725109 is an apocalyptic number.

It is an amenable number.

230725109 is a deficient number, since it is larger than the sum of its proper divisors (2920651).

230725109 is an equidigital number, since it uses as much as digits as its factorization.

230725109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920650.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 230725109 is about 15189.6382116231. The cubic root of 230725109 is about 613.3357600395.

The spelling of 230725109 in words is "two hundred thirty million, seven hundred twenty-five thousand, one hundred nine".

Divisors: 1 79 2920571 230725109