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64090497 = 3142315013
BaseRepresentation
bin1111010001111…
…1000110000001
311110121010122010
43310133012001
5112401343442
610205403133
71405521522
oct364370601
9143533563
1064090497
11331a5159
12195694a9
131037ca93
148724849
15595eb9c
hex3d1f181

64090497 has 8 divisors (see below), whose sum is σ = 85519744. Its totient is φ = 42694128.

The previous prime is 64090487. The next prime is 64090517. The reversal of 64090497 is 79409046.

64090497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 64090497 - 212 = 64086401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64090417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3238 + ... + 11775.

It is an arithmetic number, because the mean of its divisors is an integer number (10689968).

Almost surely, 264090497 is an apocalyptic number.

It is an amenable number.

64090497 is a deficient number, since it is larger than the sum of its proper divisors (21429247).

64090497 is a wasteful number, since it uses less digits than its factorization.

64090497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16439.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 64090497 is about 8005.6540644722. The cubic root of 64090497 is about 400.1884466224.

The spelling of 64090497 in words is "sixty-four million, ninety thousand, four hundred ninety-seven".

Divisors: 1 3 1423 4269 15013 45039 21363499 64090497