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64378301 = 134952177
BaseRepresentation
bin1111010110010…
…1010110111101
311111010202102112
43311211112331
5112440101201
610215503405
71411130561
oct365452675
9144122375
1064378301
1133381409
1219687b65
1310450a90
14879b6a1
1559ba0bb
hex3d655bd

64378301 has 4 divisors (see below), whose sum is σ = 69330492. Its totient is φ = 59426112.

The previous prime is 64378283. The next prime is 64378313. The reversal of 64378301 is 10387346.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24700900 + 39677401 = 4970^2 + 6299^2 .

It is a cyclic number.

It is not a de Polignac number, because 64378301 - 210 = 64377277 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 (64378001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2476076 + ... + 2476101.

It is an arithmetic number, because the mean of its divisors is an integer number (17332623).

Almost surely, 264378301 is an apocalyptic number.

It is an amenable number.

64378301 is a deficient number, since it is larger than the sum of its proper divisors (4952191).

64378301 is a wasteful number, since it uses less digits than its factorization.

64378301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952190.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 64378301 is about 8023.6089760157. The cubic root of 64378301 is about 400.7865793020.

The spelling of 64378301 in words is "sixty-four million, three hundred seventy-eight thousand, three hundred one".

Divisors: 1 13 4952177 64378301