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64430234067 = 3127131689353
BaseRepresentation
bin111100000000010101…
…110101100111010011
320011022020212000101110
4330000111311213103
52023423114442232
645333203304403
74440432645003
oct740025654723
9204266760343
1064430234067
1125363207531
12105a167b103
1360ca547874
143192ddc003
151a2165eacc
hexf005759d3

64430234067 has 8 divisors (see below), whose sum is σ = 85913787024. Its totient is φ = 42950085248.

The previous prime is 64430234053. The next prime is 64430234083. The reversal of 64430234067 is 76043203446.

64430234067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64430234067 - 211 = 64430232019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64230234067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806538 + ... + 882815.

It is an arithmetic number, because the mean of its divisors is an integer number (10739223378).

Almost surely, 264430234067 is an apocalyptic number.

64430234067 is a deficient number, since it is larger than the sum of its proper divisors (21483552957).

64430234067 is a wasteful number, since it uses less digits than its factorization.

64430234067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702069.

The product of its (nonzero) digits is 290304, while the sum is 39.

The spelling of 64430234067 in words is "sixty-four billion, four hundred thirty million, two hundred thirty-four thousand, sixty-seven".

Divisors: 1 3 12713 38139 1689353 5068059 21476744689 64430234067