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64630341 = 327181149
BaseRepresentation
bin1111011010001…
…0111001000101
311111121120011100
43312202321011
5113021132331
610225130313
71413230436
oct366427105
9144546140
1064630341
1133533806
1219789999
131050b709
14882548d
155a19ae6
hex3da2e45

64630341 has 6 divisors (see below), whose sum is σ = 93354950. Its totient is φ = 43086888.

The previous prime is 64630339. The next prime is 64630361. The reversal of 64630341 is 14303646.

It can be written as a sum of positive squares in only one way, i.e., 52056225 + 12574116 = 7215^2 + 3546^2 .

It is not a de Polignac number, because 64630341 - 21 = 64630339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64630361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3590566 + ... + 3590583.

Almost surely, 264630341 is an apocalyptic number.

It is an amenable number.

64630341 is a deficient number, since it is larger than the sum of its proper divisors (28724609).

64630341 is a wasteful number, since it uses less digits than its factorization.

64630341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7181155 (or 7181152 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 64630341 is about 8039.2997829413. The cubic root of 64630341 is about 401.3089225491.

Adding to 64630341 its reverse (14303646), we get a palindrome (78933987).

The spelling of 64630341 in words is "sixty-four million, six hundred thirty thousand, three hundred forty-one".

Divisors: 1 3 9 7181149 21543447 64630341