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64868629 = 789104123
BaseRepresentation
bin1111011101110…
…1000100010101
311112001200000211
43313131010111
5113101244004
610234205421
71415242240
oct367350425
9145050024
1064868629
1133686841
1219883871
1310593007
148888257
155a65504
hex3ddd115

64868629 has 8 divisors (see below), whose sum is σ = 74969280. Its totient is φ = 54976416.

The previous prime is 64868623. The next prime is 64868633. The reversal of 64868629 is 92686846.

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 64868629 - 25 = 64868597 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 (64868623) 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, 51439 + ... + 52684.

It is an arithmetic number, because the mean of its divisors is an integer number (9371160).

Almost surely, 264868629 is an apocalyptic number.

It is an amenable number.

64868629 is a deficient number, since it is larger than the sum of its proper divisors (10100651).

64868629 is a wasteful number, since it uses less digits than its factorization.

64868629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104219.

The product of its digits is 995328, while the sum is 49.

The square root of 64868629 is about 8054.1063439714. The cubic root of 64868629 is about 401.8015179024.

The spelling of 64868629 in words is "sixty-four million, eight hundred sixty-eight thousand, six hundred twenty-nine".

Divisors: 1 7 89 623 104123 728861 9266947 64868629