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230633553 = 3434334129
BaseRepresentation
bin11011011111100…
…11000001010001
3121001222101202110
431233303001101
5433020233203
634515135533
75500232013
oct1557630121
9531871673
10230633553
11109206447
12652a45a9
1338a21777
14228b81b3
15153aad03
hexdbf3051

230633553 has 16 divisors (see below), whose sum is σ = 315465920. Its totient is φ = 149796864.

The previous prime is 230633539. The next prime is 230633561. The reversal of 230633553 is 355336032.

It is not a de Polignac number, because 230633553 - 29 = 230633041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230633553.

It is not an unprimeable number, because it can be changed into a prime (230633573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53793 + ... + 57921.

It is an arithmetic number, because the mean of its divisors is an integer number (19716620).

Almost surely, 2230633553 is an apocalyptic number.

It is an amenable number.

230633553 is a deficient number, since it is larger than the sum of its proper divisors (84832367).

230633553 is a wasteful number, since it uses less digits than its factorization.

230633553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4608.

The product of its (nonzero) digits is 24300, while the sum is 30.

The square root of 230633553 is about 15186.6241475846. The cubic root of 230633553 is about 613.2546216400.

Adding to 230633553 its reverse (355336032), we get a palindrome (585969585).

The spelling of 230633553 in words is "two hundred thirty million, six hundred thirty-three thousand, five hundred fifty-three".

Divisors: 1 3 43 129 433 1299 4129 12387 18619 55857 177547 532641 1787857 5363571 76877851 230633553