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64342797 = 3191128821
BaseRepresentation
bin1111010101110…
…0101100001101
311111001221201120
43311130230031
5112432432142
610215031153
71410622221
oct365345415
9144057646
1064342797
1133357772
121966b4b9
131043a87c
14878c781
1559ae7ec
hex3d5cb0d

64342797 has 8 divisors (see below), whose sum is σ = 90305760. Its totient is φ = 40637520.

The previous prime is 64342787. The next prime is 64342801. The reversal of 64342797 is 79724346.

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

It is not a de Polignac number, because 64342797 - 24 = 64342781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64342727) 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, 564354 + ... + 564467.

It is an arithmetic number, because the mean of its divisors is an integer number (11288220).

Almost surely, 264342797 is an apocalyptic number.

It is an amenable number.

64342797 is a deficient number, since it is larger than the sum of its proper divisors (25962963).

64342797 is a wasteful number, since it uses less digits than its factorization.

64342797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128843.

The product of its digits is 254016, while the sum is 42.

The square root of 64342797 is about 8021.3962001637. The cubic root of 64342797 is about 400.7128891346.

The spelling of 64342797 in words is "sixty-four million, three hundred forty-two thousand, seven hundred ninety-seven".

Divisors: 1 3 19 57 1128821 3386463 21447599 64342797