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64235233 = 413374649
BaseRepresentation
bin1111010100001…
…0011011100001
311110212111011201
43311002123201
5112421011413
610212441201
71406663506
oct365023341
9143774151
1064235233
1133293977
1219619201
131040091a
1487614ad
15598c9dd
hex3d426e1

64235233 has 8 divisors (see below), whose sum is σ = 66011400. Its totient is φ = 62469120.

The previous prime is 64235209. The next prime is 64235267. The reversal of 64235233 is 33253246.

64235233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5987809 + 58247424 = 2447^2 + 7632^2 .

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 64235233 - 25 = 64235201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64235273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11493 + ... + 16141.

It is an arithmetic number, because the mean of its divisors is an integer number (8251425).

Almost surely, 264235233 is an apocalyptic number.

It is an amenable number.

64235233 is a deficient number, since it is larger than the sum of its proper divisors (1776167).

64235233 is a wasteful number, since it uses less digits than its factorization.

64235233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027.

The product of its digits is 12960, while the sum is 28.

The square root of 64235233 is about 8014.6885778550. The cubic root of 64235233 is about 400.4894695546.

Adding to 64235233 its reverse (33253246), we get a palindrome (97488479).

The spelling of 64235233 in words is "sixty-four million, two hundred thirty-five thousand, two hundred thirty-three".

Divisors: 1 41 337 4649 13817 190609 1566713 64235233