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80291664000 = 2732534312967
BaseRepresentation
bin100101011000111000…
…0011001000010000000
321200020122221010210100
41022301300121002000
52303414131222000
6100515133002400
75541462611652
oct1126160310200
9250218833710
1080291664000
1131062607609
1213689623400
1377576a4572
143c597bc6d2
15214ddd2a00
hex12b1c19080

80291664000 has 384 divisors, whose sum is σ = 295075946880. Its totient is φ = 20911564800.

The previous prime is 80291663989. The next prime is 80291664073. The reversal of 80291664000 is 46619208.

80291664000 is a `hidden beast` number, since 8 + 0 + 2 + 9 + 1 + 6 + 640 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6185517 + ... + 6198483.

It is an arithmetic number, because the mean of its divisors is an integer number (768426945).

Almost surely, 280291664000 is an apocalyptic number.

80291664000 is a gapful number since it is divisible by the number (80) 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 80291664000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147537973440).

80291664000 is an abundant number, since it is smaller than the sum of its proper divisors (214784282880).

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

80291664000 is a wasteful number, since it uses less digits than its factorization.

80291664000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13045 (or 13020 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 80291664000 in words is "eighty billion, two hundred ninety-one million, six hundred sixty-four thousand".