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80032975802 = 21317181070081
BaseRepresentation
bin100101010001001010…
…1100100101110111010
321122120122011102021222
41022202111210232322
52302401420211202
6100433332232042
75532202032653
oct1124225445672
9248518142258
1080032975802
1130a3a58a30a
1213616a6b622
137715c0c420
143c332c052a
1521363344a2
hex12a2564bba

80032975802 has 16 divisors (see below), whose sum is σ = 136888981992. Its totient is φ = 34765455360.

The previous prime is 80032975787. The next prime is 80032975811. The reversal of 80032975802 is 20857923008.

It is a Cunningham number, because it is equal to 2829012+1.

It can be written as a sum of positive squares in 4 ways, for example, as 79310387641 + 722588161 = 281621^2 + 26881^2 .

It is a super-3 number, since 3×800329758023 (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90534599 + ... + 90535482.

Almost surely, 280032975802 is an apocalyptic number.

80032975802 is a deficient number, since it is larger than the sum of its proper divisors (56856006190).

80032975802 is a wasteful number, since it uses less digits than its factorization.

80032975802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181070113.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 80032975802 in words is "eighty billion, thirty-two million, nine hundred seventy-five thousand, eight hundred two".

Divisors: 1 2 13 17 26 34 221 442 181070081 362140162 2353911053 3078191377 4707822106 6156382754 40016487901 80032975802