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80168406208 = 2611791441463
BaseRepresentation
bin100101010101001101…
…0001100110011000000
321122221001222222212221
41022222122030303000
52303141102444313
6100455011100424
75535435131542
oct1125232146300
9248831888787
1080168406208
1130aa9a80170
12136542a1714
137737ca9867
143c47295692
152143186c8d
hex12aa68ccc0

80168406208 has 56 divisors (see below), whose sum is σ = 175743290880. Its totient is φ = 35978891520.

The previous prime is 80168406193. The next prime is 80168406209. The reversal of 80168406208 is 80260486108.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (80168406209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665116 + ... + 776347.

Almost surely, 280168406208 is an apocalyptic number.

80168406208 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

80168406208 is an abundant number, since it is smaller than the sum of its proper divisors (95574884672).

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

80168406208 is a wasteful number, since it uses less digits than its factorization.

80168406208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441565 (or 1441555 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The spelling of 80168406208 in words is "eighty billion, one hundred sixty-eight million, four hundred six thousand, two hundred eight".

Divisors: 1 2 4 8 11 16 22 32 44 64 79 88 158 176 316 352 632 704 869 1264 1738 2528 3476 5056 6952 13904 27808 55616 1441463 2882926 5765852 11531704 15856093 23063408 31712186 46126816 63424372 92253632 113875577 126848744 227751154 253697488 455502308 507394976 911004616 1014789952 1252631347 1822009232 2505262694 3644018464 5010525388 7288036928 10021050776 20042101552 40084203104 80168406208