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69315992064 = 2932113121423
BaseRepresentation
bin100000010001110001…
…1100001101000000000
320121220202021020101100
41000203203201220000
52113424343221224
651502054134400
75002500132264
oct1004343415000
9217822236340
1069315992064
1127440085860
1211525951400
1366c8817327
1434d7c420a4
151c0a54bac9
hex10238e1a00

69315992064 has 360 divisors, whose sum is σ = 225662538816. Its totient is φ = 20312985600.

The previous prime is 69315992063. The next prime is 69315992077. The reversal of 69315992064 is 46029951396.

It is a self number, because there is not a number n which added to its sum of digits gives 69315992064.

It is not an unprimeable number, because it can be changed into a prime (69315992063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 48710457 + ... + 48711879.

Almost surely, 269315992064 is an apocalyptic number.

69315992064 is a gapful number since it is divisible by the number (64) 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 69315992064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112831269408).

69315992064 is an abundant number, since it is smaller than the sum of its proper divisors (156346546752).

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

69315992064 is a wasteful number, since it uses less digits than its factorization.

69315992064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520 (or 1470 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

It can be divided in two parts, 6931 and 5992064, that added together give a palindrome (5998995).

The spelling of 69315992064 in words is "sixty-nine billion, three hundred fifteen million, nine hundred ninety-two thousand, sixty-four".