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80956882944 = 2193371943
BaseRepresentation
bin100101101100101101…
…0000000000000000000
321201222000122202122000
41023121122000000000
52311244430223234
6101105134544000
75564121102540
oct1133132000000
9251860582560
1080956882944
1131374060433
1213834368000
137832456742
143cbdca1320
15218c4d4899
hex12d9680000

80956882944 has 640 divisors, whose sum is σ = 295278720000. Its totient is φ = 21403533312.

The previous prime is 80956882939. The next prime is 80956882949. The reversal of 80956882944 is 44928865908.

80956882944 is a `hidden beast` number, since 8 + 0 + 9 + 568 + 8 + 29 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (80956882939) and next prime (80956882949).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80956882949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1882718187 + ... + 1882718229.

It is an arithmetic number, because the mean of its divisors is an integer number (461373000).

Almost surely, 280956882944 is an apocalyptic number.

80956882944 is a gapful number since it is divisible by the number (84) 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 80956882944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147639360000).

80956882944 is an abundant number, since it is smaller than the sum of its proper divisors (214321837056).

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

80956882944 is an frugal number, since it uses more digits than its factorization.

80956882944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 63.

The spelling of 80956882944 in words is "eighty billion, nine hundred fifty-six million, eight hundred eighty-two thousand, nine hundred forty-four".