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64342067 = 478713441
BaseRepresentation
bin1111010101110…
…0100000110011
311111001220201112
43311130200303
5112432421232
610215023535
71410620126
oct365344063
9144056645
1064342067
1133357169
121966abab
131043a43a
14878c3bd
1559ae4b2
hex3d5c833

64342067 has 4 divisors (see below), whose sum is σ = 64360296. Its totient is φ = 64323840.

The previous prime is 64342009. The next prime is 64342099. The reversal of 64342067 is 76024346.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76024346 = 238012173.

It is a cyclic number.

It is not a de Polignac number, because 64342067 - 218 = 64079923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64342567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1934 + ... + 11507.

It is an arithmetic number, because the mean of its divisors is an integer number (16090074).

Almost surely, 264342067 is an apocalyptic number.

64342067 is a deficient number, since it is larger than the sum of its proper divisors (18229).

64342067 is a wasteful number, since it uses less digits than its factorization.

64342067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18228.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 64342067 is about 8021.3506967343. The cubic root of 64342067 is about 400.7113737020.

The spelling of 64342067 in words is "sixty-four million, three hundred forty-two thousand, sixty-seven".

Divisors: 1 4787 13441 64342067