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64349011 = 676611453
BaseRepresentation
bin1111010101111…
…0001101010011
311111002021020201
43311132031103
5112433132021
610215120031
71410646306
oct365361523
9144067221
1064349011
1133361401
1219673017
131044064c
148790b3d
1559b1591
hex3d5e353

64349011 has 8 divisors (see below), whose sum is σ = 65453264. Its totient is φ = 63249120.

The previous prime is 64348997. The next prime is 64349017. The reversal of 64349011 is 11094346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 5-Lehmer number, since φ(64349011) divides (64349011-1)5.

It is a cyclic number.

It is not a de Polignac number, because 64349011 - 215 = 64316243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64349017) 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, 43561 + ... + 45013.

It is an arithmetic number, because the mean of its divisors is an integer number (8181658).

Almost surely, 264349011 is an apocalyptic number.

64349011 is a deficient number, since it is larger than the sum of its proper divisors (1104253).

64349011 is a wasteful number, since it uses less digits than its factorization.

64349011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 64349011 is about 8021.7835298642. The cubic root of 64349011 is about 400.7257885310.

The spelling of 64349011 in words is "sixty-four million, three hundred forty-nine thousand, eleven".

Divisors: 1 67 661 1453 44287 97351 960433 64349011