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64830029 = 117183009
BaseRepresentation
bin1111011101001…
…1101001001101
311111222201002012
43313103221031
5113044030104
610233311005
71415021555
oct367235115
9144881065
1064830029
113365a840
1219865465
131057b584
148878165
155a58d6e
hex3dd3a4d

64830029 has 8 divisors (see below), whose sum is σ = 71720640. Its totient is φ = 58105600.

The previous prime is 64830023. The next prime is 64830043. The reversal of 64830029 is 92003846.

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 64830029 - 220 = 63781453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64829977 and 64830004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64830023) 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, 40724 + ... + 42285.

It is an arithmetic number, because the mean of its divisors is an integer number (8965080).

Almost surely, 264830029 is an apocalyptic number.

It is an amenable number.

64830029 is a deficient number, since it is larger than the sum of its proper divisors (6890611).

64830029 is a wasteful number, since it uses less digits than its factorization.

64830029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83091.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 64830029 is about 8051.7096942202. The cubic root of 64830029 is about 401.7218049185.

The spelling of 64830029 in words is "sixty-four million, eight hundred thirty thousand, twenty-nine".

Divisors: 1 11 71 781 83009 913099 5893639 64830029