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69463949980 = 22529318389523
BaseRepresentation
bin100000010110001011…
…1111100001010011100
320122022001200021111011
41000230113330022130
52114230232344410
651524501305004
75006244555415
oct1005427741234
9218261607434
1069463949980
1127506652827
1211567405164
13672037c8a9
14350d75880c
151c1852618a
hex102c5fc29c

69463949980 has 192 divisors, whose sum is σ = 159725260800. Its totient is φ = 25312573440.

The previous prime is 69463949959. The next prime is 69463949983. The reversal of 69463949980 is 8994936496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69463949983) 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 63 ways as a sum of consecutive naturals, for example, 132817999 + ... + 132818521.

It is an arithmetic number, because the mean of its divisors is an integer number (831902400).

Almost surely, 269463949980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69463949980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79862630400).

69463949980 is an abundant number, since it is smaller than the sum of its proper divisors (90261310820).

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

69463949980 is a wasteful number, since it uses less digits than its factorization.

69463949980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 90699264, while the sum is 67.

The spelling of 69463949980 in words is "sixty-nine billion, four hundred sixty-three million, nine hundred forty-nine thousand, nine hundred eighty".