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230777947 = 4313938611
BaseRepresentation
bin11011100000101…
…10010001011011
3121002020201211101
431300112101123
5433034343242
634522212231
75501403001
oct1560262133
9532221741
10230777947
111092a4984
1265354077
1338a723ca
1422914a71
15153d89b7
hexdc1645b

230777947 has 8 divisors (see below), whose sum is σ = 237849920. Its totient is φ = 223783560.

The previous prime is 230777891. The next prime is 230777951. The reversal of 230777947 is 749777032.

230777947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230777947 - 211 = 230775899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230777897 and 230777906.

It is not an unprimeable number, because it can be changed into a prime (230777957) 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, 13329 + ... + 25282.

It is an arithmetic number, because the mean of its divisors is an integer number (29731240).

Almost surely, 2230777947 is an apocalyptic number.

230777947 is a deficient number, since it is larger than the sum of its proper divisors (7071973).

230777947 is a wasteful number, since it uses less digits than its factorization.

230777947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38793.

The product of its (nonzero) digits is 518616, while the sum is 46.

The square root of 230777947 is about 15191.3773898222. The cubic root of 230777947 is about 613.3825761569.

The spelling of 230777947 in words is "two hundred thirty million, seven hundred seventy-seven thousand, nine hundred forty-seven".

Divisors: 1 43 139 5977 38611 1660273 5366929 230777947