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564481407 = 3726880067
BaseRepresentation
bin100001101001010…
…100110101111111
31110100011121220210
4201221110311333
52124001401112
6132002443503
716663004250
oct4151246577
91410147823
10564481407
1126a6a9266
12139063593
138cc40a89
1454d7cb27
1534853b3c
hex21a54d7f

564481407 has 8 divisors (see below), whose sum is σ = 860162176. Its totient is φ = 322560792.

The previous prime is 564481397. The next prime is 564481417. The reversal of 564481407 is 704184465.

It is an interprime number because it is at equal distance from previous prime (564481397) and next prime (564481417).

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

It is not a de Polignac number, because 564481407 - 24 = 564481391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564481417) 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 7 ways as a sum of consecutive naturals, for example, 13440013 + ... + 13440054.

It is an arithmetic number, because the mean of its divisors is an integer number (107520272).

Almost surely, 2564481407 is an apocalyptic number.

564481407 is a deficient number, since it is larger than the sum of its proper divisors (295680769).

564481407 is a wasteful number, since it uses less digits than its factorization.

564481407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26880077.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 564481407 is about 23758.8174579460. The cubic root of 564481407 is about 826.4499299746.

The spelling of 564481407 in words is "five hundred sixty-four million, four hundred eighty-one thousand, four hundred seven".

Divisors: 1 3 7 21 26880067 80640201 188160469 564481407