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80000000008 = 23101354127961
BaseRepresentation
bin100101010000001011…
…1110010000000001000
321122111100010002000021
41022200113302000020
52302320000000013
6100430153350224
75531321531425
oct1124027620010
9248440102007
1080000000008
1130a22a07095
1213607a08374
13770c134b16
143c2cb78d4c
1521334bda8d
hex12a05f2008

80000000008 has 32 divisors (see below), whose sum is σ = 151533348120. Its totient is φ = 39591360000.

The previous prime is 79999999999. The next prime is 80000000021.

80000000008 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 73843714564 + 6156285444 = 271742^2 + 78462^2 .

80000000008 is a strobogrammatic number because it is the same when read upside-down.

It is a junction number, because it is equal to n+sod(n) for n = 79999999919 and 80000000000.

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, 2847148 + ... + 2875108.

Almost surely, 280000000008 is an apocalyptic number.

It is an amenable number.

80000000008 is a deficient number, since it is larger than the sum of its proper divisors (71533348112).

80000000008 is a wasteful number, since it uses less digits than its factorization.

80000000008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31609 (or 31605 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

It can be divided in two parts, 8000000000 and 8, that multiplied together give a cube (64000000000 = 40003).

The spelling of 80000000008 in words is "eighty billion, eight", and thus it is an aban number and an uban number.

Divisors: 1 2 4 8 101 202 404 808 3541 7082 14164 27961 28328 55922 111844 223688 357641 715282 1430564 2824061 2861128 5648122 11296244 22592488 99009901 198019802 396039604 792079208 10000000001 20000000002 40000000004 80000000008