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64068259 = 293449487
BaseRepresentation
bin1111010001100…
…1101010100011
311110120000010111
43310121222203
5112400141014
610205112151
71405366633
oct364315243
9143500114
1064068259
113318a482
1219558657
1310372918
14871a6c3
1559582c4
hex3d19aa3

64068259 has 8 divisors (see below), whose sum is σ = 64562400. Its totient is φ = 63576576.

The previous prime is 64068233. The next prime is 64068269. The reversal of 64068259 is 95286046.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-64068259 is a prime.

It is a super-2 number, since 2×640682592 = 8209483622582162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64068229) 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, 131314 + ... + 131800.

It is an arithmetic number, because the mean of its divisors is an integer number (8070300).

Almost surely, 264068259 is an apocalyptic number.

64068259 is a deficient number, since it is larger than the sum of its proper divisors (494141).

64068259 is a wasteful number, since it uses less digits than its factorization.

64068259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 64068259 is about 8004.2650505840. The cubic root of 64068259 is about 400.1421557234.

The spelling of 64068259 in words is "sixty-four million, sixty-eight thousand, two hundred fifty-nine".

Divisors: 1 293 449 487 131557 142691 218663 64068259