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64342270 = 2523212163
BaseRepresentation
bin1111010101110…
…0100011111110
311111001221000001
43311130203332
5112432423040
610215024514
71410620536
oct365344376
9144057001
1064342270
1133357333
121966b13a
131043a565
14878c4c6
1559ae59a
hex3d5c8fe

64342270 has 24 divisors (see below), whose sum is σ = 121080456. Its totient is φ = 24615888.

The previous prime is 64342253. The next prime is 64342309. The reversal of 64342270 is 7224346.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 792 + ... + 11371.

It is an arithmetic number, because the mean of its divisors is an integer number (5045019).

Almost surely, 264342270 is an apocalyptic number.

64342270 is a deficient number, since it is larger than the sum of its proper divisors (56738186).

64342270 is a wasteful number, since it uses less digits than its factorization.

64342270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12216 (or 12193 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 64342270 is about 8021.3633504536. The cubic root of 64342270 is about 400.7117951180.

The spelling of 64342270 in words is "sixty-four million, three hundred forty-two thousand, two hundred seventy".

Divisors: 1 2 5 10 23 46 115 230 529 1058 2645 5290 12163 24326 60815 121630 279749 559498 1398745 2797490 6434227 12868454 32171135 64342270