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64323469 = 79189067
BaseRepresentation
bin1111010101011…
…1111110001101
311111000222012201
43311113332031
5112431322334
610214401501
71410511660
oct365277615
9144028181
1064323469
11333441a1
1219660291
1310431b32
1487856d7
1559a8c14
hex3d57f8d

64323469 has 4 divisors (see below), whose sum is σ = 73512544. Its totient is φ = 55134396.

The previous prime is 64323431. The next prime is 64323487. The reversal of 64323469 is 96432346.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96432346 = 248216173.

It is a cyclic number.

It is not a de Polignac number, because 64323469 - 215 = 64290701 is a prime.

It is a super-2 number, since 2×643234692 = 8275017328387922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64323409) 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, 4594527 + ... + 4594540.

It is an arithmetic number, because the mean of its divisors is an integer number (18378136).

Almost surely, 264323469 is an apocalyptic number.

It is an amenable number.

64323469 is a deficient number, since it is larger than the sum of its proper divisors (9189075).

64323469 is an equidigital number, since it uses as much as digits as its factorization.

64323469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9189074.

The product of its digits is 93312, while the sum is 37.

The square root of 64323469 is about 8020.1913318823. The cubic root of 64323469 is about 400.6727615952.

The spelling of 64323469 in words is "sixty-four million, three hundred twenty-three thousand, four hundred sixty-nine".

Divisors: 1 7 9189067 64323469