Search a number
64593369 = 34192472
BaseRepresentation
bin1111011001100…
…1110111011001
311111112200110000
43312121313121
5113013441434
610224243213
71413014601
oct366316731
9144480400
1064593369
1133508a55
1219770509
13104c7939
148815c01
155a0db99
hex3d99dd9

64593369 has 45 divisors (see below), whose sum is σ = 104049957. Its totient is φ = 39927816.

The previous prime is 64593317. The next prime is 64593371. The reversal of 64593369 is 96339546.

It is a happy number.

The square root of 64593369 is 8037.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 64593369 - 27 = 64593241 is a prime.

It is a super-2 number, since 2×645933692 = 8344606637540322, which contains 22 as substring.

Its product of digits (524880) is a multiple of the sum of its prime factors (144).

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (64593169) 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 44 ways as a sum of consecutive naturals, for example, 1374304 + ... + 1374350.

Almost surely, 264593369 is an apocalyptic number.

64593369 is the 8037-th square number.

64593369 is the 4019-th centered octagonal number.

It is an amenable number.

64593369 is a deficient number, since it is larger than the sum of its proper divisors (39456588).

64593369 is an equidigital number, since it uses as much as digits as its factorization.

64593369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 69 counting only the distinct ones).

The product of its digits is 524880, while the sum is 45.

The cubic root of 64593369 is about 401.2323845878.

The spelling of 64593369 in words is "sixty-four million, five hundred ninety-three thousand, three hundred sixty-nine".