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230711434 = 2115355717
BaseRepresentation
bin11011100000001…
…10000010001010
3121002010100120221
431300012002022
5433030231214
634520540254
75501005042
oct1560060212
9532110527
10230711434
11109259a08
126532168a
1338a4b055
14228d8722
15153c3e24
hexdc0608a

230711434 has 4 divisors (see below), whose sum is σ = 346067154. Its totient is φ = 115355716.

The previous prime is 230711401. The next prime is 230711441. The reversal of 230711434 is 434117032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 228161025 + 2550409 = 15105^2 + 1597^2 .

It is a junction number, because it is equal to n+sod(n) for n = 230711399 and 230711408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57677857 + ... + 57677860.

Almost surely, 2230711434 is an apocalyptic number.

230711434 is a deficient number, since it is larger than the sum of its proper divisors (115355720).

230711434 is a wasteful number, since it uses less digits than its factorization.

230711434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115355719.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 230711434 is about 15189.1880625661. The cubic root of 230711434 is about 613.3236423983.

Adding to 230711434 its reverse (434117032), we get a palindrome (664828466).

The spelling of 230711434 in words is "two hundred thirty million, seven hundred eleven thousand, four hundred thirty-four".

Divisors: 1 2 115355717 230711434