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78682214445 = 355988906457
BaseRepresentation
bin100100101000111010…
…0110101000000101101
321112002111110122001120
41021101310311000231
52242120121330240
6100051320531153
75453550534132
oct1112164650055
9245074418046
1078682214445
113040707130a
12132ba620ab9
13755c110653
143b45b48589
1520a7968ad0
hex1251d3502d

78682214445 has 16 divisors (see below), whose sum is σ = 128025299520. Its totient is φ = 41252595584.

The previous prime is 78682214437. The next prime is 78682214447. The reversal of 78682214445 is 54441228687.

It is a cyclic number.

It is not a de Polignac number, because 78682214445 - 23 = 78682214437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78682214447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44452344 + ... + 44454113.

It is an arithmetic number, because the mean of its divisors is an integer number (8001581220).

Almost surely, 278682214445 is an apocalyptic number.

It is an amenable number.

78682214445 is a deficient number, since it is larger than the sum of its proper divisors (49343085075).

78682214445 is a wasteful number, since it uses less digits than its factorization.

78682214445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88906524.

The product of its digits is 3440640, while the sum is 51.

The spelling of 78682214445 in words is "seventy-eight billion, six hundred eighty-two million, two hundred fourteen thousand, four hundred forty-five".

Divisors: 1 3 5 15 59 177 295 885 88906457 266719371 444532285 1333596855 5245480963 15736442889 26227404815 78682214445