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230434533 = 3273657691
BaseRepresentation
bin11011011110000…
…10011011100101
3121001121021202100
431233002123211
5432442401113
634511002313
75465442540
oct1557023345
9531537670
10230434533
1110908a96a
1265209399
1338981cc4
1422865857
151536bd73
hexdbc26e5

230434533 has 12 divisors (see below), whose sum is σ = 380399968. Its totient is φ = 131676840.

The previous prime is 230434531. The next prime is 230434543. The reversal of 230434533 is 335434032.

It is a happy number.

It is not a de Polignac number, because 230434533 - 21 = 230434531 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230434497 and 230434506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230434531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1828783 + ... + 1828908.

Almost surely, 2230434533 is an apocalyptic number.

It is an amenable number.

230434533 is a deficient number, since it is larger than the sum of its proper divisors (149965435).

230434533 is a wasteful number, since it uses less digits than its factorization.

230434533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657704 (or 3657701 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

The square root of 230434533 is about 15180.0702567544. The cubic root of 230434533 is about 613.0781728149.

Adding to 230434533 its reverse (335434032), we get a palindrome (565868565).

The spelling of 230434533 in words is "two hundred thirty million, four hundred thirty-four thousand, five hundred thirty-three".

Divisors: 1 3 7 9 21 63 3657691 10973073 25603837 32919219 76811511 230434533