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64486983 = 3111954151
BaseRepresentation
bin1111010111111…
…1111001000111
311111100021111210
43311333321013
5113002040413
610222102503
71412062461
oct365777107
9144307453
1064486983
1133446030
121971aa33
131048b3a2
1487c9131
1559dc3c3
hex3d7fe47

64486983 has 8 divisors (see below), whose sum is σ = 93799296. Its totient is φ = 39083000.

The previous prime is 64486951. The next prime is 64486991. The reversal of 64486983 is 38968446.

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

It is not a de Polignac number, because 64486983 - 25 = 64486951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64476983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977043 + ... + 977108.

It is an arithmetic number, because the mean of its divisors is an integer number (11724912).

Almost surely, 264486983 is an apocalyptic number.

64486983 is a deficient number, since it is larger than the sum of its proper divisors (29312313).

64486983 is a wasteful number, since it uses less digits than its factorization.

64486983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954165.

The product of its digits is 995328, while the sum is 48.

The square root of 64486983 is about 8030.3787581907. The cubic root of 64486983 is about 401.0119854710.

It can be divided in two parts, 6448 and 6983, that added together give a palindrome (13431).

The spelling of 64486983 in words is "sixty-four million, four hundred eighty-six thousand, nine hundred eighty-three".

Divisors: 1 3 11 33 1954151 5862453 21495661 64486983