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80472071024773 = 344923332000877
BaseRepresentation
bin10010010011000001011101…
…001101010011000010000101
3101112221001110222202210101121
4102103001131031103002011
541021423300140243043
6443052205320553541
722643625636455161
oct2223013515230205
9345831428683347
1080472071024773
112370601721112a
1290380399228b1
1335b96399cc33c
1415c2c24835ca1
159483e3684ded
hex49305d353085

80472071024773 has 4 divisors (see below), whose sum is σ = 80495403029100. Its totient is φ = 80448739020448.

The previous prime is 80472071024747. The next prime is 80472071024783. The reversal of 80472071024773 is 37742017027408.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1397613390849 + 79074457633924 = 1182207^2 + 8892382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80472071024773 is a prime.

It is a super-2 number, since 2×804720710247732 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80472071024773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80472071024713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11665996990 + ... + 11666003887.

It is an arithmetic number, because the mean of its divisors is an integer number (20123850757275).

Almost surely, 280472071024773 is an apocalyptic number.

It is an amenable number.

80472071024773 is a deficient number, since it is larger than the sum of its proper divisors (23332004327).

80472071024773 is a wasteful number, since it uses less digits than its factorization.

80472071024773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23332004326.

The product of its (nonzero) digits is 3687936, while the sum is 52.

The spelling of 80472071024773 in words is "eighty trillion, four hundred seventy-two billion, seventy-one million, twenty-four thousand, seven hundred seventy-three".

Divisors: 1 3449 23332000877 80472071024773