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80476830720 = 21034511132359
BaseRepresentation
bin100101011110011001…
…0101111110000000000
321200201120100120210000
41022330302233300000
52304304032040340
6100545345440000
75546201526426
oct1127462576000
9250646316700
1080476830720
1131148089060
121371b640000
137786b67080
143c7621d116
1521602abd30
hex12bccafc00

80476830720 has 1760 divisors, whose sum is σ = 359522634240. Its totient is φ = 16933847040.

The previous prime is 80476830701. The next prime is 80476830761. The reversal of 80476830720 is 2703867408.

It is a happy number.

80476830720 is a `hidden beast` number, since 80 + 476 + 8 + 30 + 72 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1760).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 159 ways as a sum of consecutive naturals, for example, 1364014051 + ... + 1364014109.

It is an arithmetic number, because the mean of its divisors is an integer number (204274224).

Almost surely, 280476830720 is an apocalyptic number.

80476830720 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 80476830720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179761317120).

80476830720 is an abundant number, since it is smaller than the sum of its proper divisors (279045803520).

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

80476830720 is a wasteful number, since it uses less digits than its factorization.

80476830720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 80476830720 in words is "eighty billion, four hundred seventy-six million, eight hundred thirty thousand, seven hundred twenty".