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80000069000 = 235380000069
BaseRepresentation
bin100101010000001100…
…0000010110110001000
321122111100020120122112
41022200120002312020
52302320004202000
6100430155041452
75531322236525
oct1124030026610
9248440216575
1080000069000
1130a22a53a05
1213607a40288
13770c15a347
143c2cb9614c
1521334d4235
hex12a0602d88

80000069000 has 32 divisors (see below), whose sum is σ = 187200163800. Its totient is φ = 32000027200.

The previous prime is 80000068957. The next prime is 80000069041. The reversal of 80000069000 is 96000008.

It can be written as a sum of positive squares in 4 ways, for example, as 51237944164 + 28762124836 = 226358^2 + 169594^2 .

It is a super-2 number, since 2×800000690002 (a number of 23 digits) contains 22 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, 39999035 + ... + 40001034.

Almost surely, 280000069000 is an apocalyptic number.

It is an amenable number.

80000069000 is an abundant number, since it is smaller than the sum of its proper divisors (107200094800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80000069000 is a wasteful number, since it uses less digits than its factorization.

80000069000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80000090 (or 80000076 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 80000069000 its reverse (96000008), we get a palindrome (80096069008).

The spelling of 80000069000 in words is "eighty billion, sixty-nine thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 80000069 160000138 320000276 400000345 640000552 800000690 1600001380 2000001725 3200002760 4000003450 8000006900 10000008625 16000013800 20000017250 40000034500 80000069000