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8780752328213 = 71123672568003
BaseRepresentation
bin111111111000110110110…
…0111111001011000010101
31011002102122201122002220002
41333301231213321120111
52122330440044000323
630401453312021045
71564250141211125
oct177615547713025
934072581562802
108780752328213
112885994859268
12b99928231785
134b9037cc7318
14224dc25d8c85
1510361a598828
hex7fc6d9f9615

8780752328213 has 4 divisors (see below), whose sum is σ = 8904424896288. Its totient is φ = 8657079760140.

The previous prime is 8780752328147. The next prime is 8780752328221. The reversal of 8780752328213 is 3128232570878.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8780752328213 - 226 = 8780685219349 is a prime.

It is a super-2 number, since 2×87807523282132 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8780752348213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61836283931 + ... + 61836284072.

It is an arithmetic number, because the mean of its divisors is an integer number (2226106224072).

Almost surely, 28780752328213 is an apocalyptic number.

It is an amenable number.

8780752328213 is a deficient number, since it is larger than the sum of its proper divisors (123672568075).

8780752328213 is a wasteful number, since it uses less digits than its factorization.

8780752328213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123672568074.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 8780752328213 in words is "eight trillion, seven hundred eighty billion, seven hundred fifty-two million, three hundred twenty-eight thousand, two hundred thirteen".

Divisors: 1 71 123672568003 8780752328213