Search a number
-
+
64907376960 = 2635611318461
BaseRepresentation
bin111100011100110001…
…111111100101000000
320012112111200101101110
4330130301333211000
52030412242030320
645452410203320
74455315413106
oct743461774500
9205474611343
1064907376960
1125588581aa8
12106b5423540
136175358c3a
1431da523c76
151a4d4b05e0
hexf1cc7f940

64907376960 has 224 divisors, whose sum is σ = 211083168384. Its totient is φ = 16892928000.

The previous prime is 64907376929. The next prime is 64907376991. The reversal of 64907376960 is 6967370946.

It is an interprime number because it is at equal distance from previous prime (64907376929) and next prime (64907376991).

It is a self number, because there is not a number n which added to its sum of digits gives 64907376960.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 7667130 + ... + 7675590.

Almost surely, 264907376960 is an apocalyptic number.

64907376960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64907376960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105541584192).

64907376960 is an abundant number, since it is smaller than the sum of its proper divisors (146175791424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64907376960 is a wasteful number, since it uses less digits than its factorization.

64907376960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8673 (or 8663 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 57.

The spelling of 64907376960 in words is "sixty-four billion, nine hundred seven million, three hundred seventy-six thousand, nine hundred sixty".