Search a number
-
+
80206028799 = 31329673105373
BaseRepresentation
bin100101010110010100…
…1101101111111111111
321200000200210102101020
41022230221231333333
52303230220410144
6100502433315223
75536402665441
oct1125451557777
9250020712336
1080206028799
1131019237616
1213664a05b13
137742a20250
143c4c28a491
152146619419
hex12aca6dfff

80206028799 has 32 divisors (see below), whose sum is σ = 119317087680. Its totient is φ = 47584309248.

The previous prime is 80206028761. The next prime is 80206028867. The reversal of 80206028799 is 99782060208.

It is a happy number.

It is not a de Polignac number, because 80206028799 - 213 = 80206020607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80206028899) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 708477 + ... + 813849.

It is an arithmetic number, because the mean of its divisors is an integer number (3728658990).

Almost surely, 280206028799 is an apocalyptic number.

80206028799 is a deficient number, since it is larger than the sum of its proper divisors (39111058881).

80206028799 is a wasteful number, since it uses less digits than its factorization.

80206028799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106091.

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 80206028799 in words is "eighty billion, two hundred six million, twenty-eight thousand, seven hundred ninety-nine".

Divisors: 1 3 13 29 39 87 377 673 1131 2019 8749 19517 26247 58551 105373 253721 316119 761163 1369849 3055817 4109547 9167451 39725621 70916029 119176863 212748087 921908377 2056564841 2765725131 6169694523 26735342933 80206028799