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80702838069 = 3713129335819
BaseRepresentation
bin100101100101001000…
…0111001010100110101
321201022022121221120120
41023022100321110311
52310234411304234
6101024021522153
75554614543120
oct1131220712465
9251268557516
1080702838069
1131253714797
1213783273359
1377c1928c29
143c982513b7
152175052049
hex12ca439535

80702838069 has 16 divisors (see below), whose sum is σ = 123914503680. Its totient is φ = 45763876080.

The previous prime is 80702838059. The next prime is 80702838071. The reversal of 80702838069 is 96083820708.

It is not a de Polignac number, because 80702838069 - 24 = 80702838053 is a prime.

It is a super-2 number, since 2×807028380692 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80702838059) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14665159 + ... + 14670660.

It is an arithmetic number, because the mean of its divisors is an integer number (7744656480).

Almost surely, 280702838069 is an apocalyptic number.

It is an amenable number.

80702838069 is a deficient number, since it is larger than the sum of its proper divisors (43211665611).

80702838069 is a wasteful number, since it uses less digits than its factorization.

80702838069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29335960.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 80702838069 in words is "eighty billion, seven hundred two million, eight hundred thirty-eight thousand, sixty-nine".

Divisors: 1 3 7 21 131 393 917 2751 29335819 88007457 205350733 616052199 3842992289 11528976867 26900946023 80702838069