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64482861 = 321494287
BaseRepresentation
bin1111010111111…
…0111000101101
311111100001212010
43311332320231
5113001422421
610222031433
71412044452
oct365767055
9144301763
1064482861
1133442a23
1219718579
1310489551
1487c7829
1559db076
hex3d7ee2d

64482861 has 4 divisors (see below), whose sum is σ = 85977152. Its totient is φ = 42988572.

The previous prime is 64482857. The next prime is 64482907. The reversal of 64482861 is 16828446.

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.

It is not a de Polignac number, because 64482861 - 22 = 64482857 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 (64482361) 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, 10747141 + ... + 10747146.

It is an arithmetic number, because the mean of its divisors is an integer number (21494288).

Almost surely, 264482861 is an apocalyptic number.

It is an amenable number.

64482861 is a deficient number, since it is larger than the sum of its proper divisors (21494291).

64482861 is a wasteful number, since it uses less digits than its factorization.

64482861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21494290.

The product of its digits is 73728, while the sum is 39.

The square root of 64482861 is about 8030.1221036794. The cubic root of 64482861 is about 401.0034410768.

The spelling of 64482861 in words is "sixty-four million, four hundred eighty-two thousand, eight hundred sixty-one".

Divisors: 1 3 21494287 64482861