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64230644411 = 140945585979
BaseRepresentation
bin111011110100011100…
…011101101010111011
320010210100021210211222
4323310130131222323
52023021021110121
645301313342255
74432460316653
oct736434355273
9203710253758
1064230644411
11252705848aa
121054686798b
1360980a528b
1431746c5363
151a0dd870ab
hexef471dabb

64230644411 has 4 divisors (see below), whose sum is σ = 64276231800. Its totient is φ = 64185057024.

The previous prime is 64230644347. The next prime is 64230644473. The reversal of 64230644411 is 11444603246.

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

It is a cyclic number.

It is not a de Polignac number, because 64230644411 - 26 = 64230644347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64230674411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22791581 + ... + 22794398.

It is an arithmetic number, because the mean of its divisors is an integer number (16069057950).

Almost surely, 264230644411 is an apocalyptic number.

64230644411 is a deficient number, since it is larger than the sum of its proper divisors (45587389).

64230644411 is a wasteful number, since it uses less digits than its factorization.

64230644411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45587388.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 64230644411 in words is "sixty-four billion, two hundred thirty million, six hundred forty-four thousand, four hundred eleven".

Divisors: 1 1409 45585979 64230644411