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80069886278 = 22231301137993
BaseRepresentation
bin100101010010010001…
…0011000000101000110
321122200012121122221122
41022210202120011012
52302440342330103
6100441131313542
75533130542454
oct1124442300506
9248605548848
1080069886278
1130a593aa738
12136272ab8b2
137720763945
143c3816b9d4
1521396c5b38
hex12a4898146

80069886278 has 16 divisors (see below), whose sum is σ = 120737022336. Its totient is φ = 39824491200.

The previous prime is 80069886257. The next prime is 80069886289. The reversal of 80069886278 is 87268896008.

It is a super-2 number, since 2×800698862782 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80069886278.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511250 + ... + 649242.

It is an arithmetic number, because the mean of its divisors is an integer number (7546063896).

Almost surely, 280069886278 is an apocalyptic number.

80069886278 is a deficient number, since it is larger than the sum of its proper divisors (40667136058).

80069886278 is a wasteful number, since it uses less digits than its factorization.

80069886278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139519.

The product of its (nonzero) digits is 18579456, while the sum is 62.

The spelling of 80069886278 in words is "eighty billion, sixty-nine million, eight hundred eighty-six thousand, two hundred seventy-eight".

Divisors: 1 2 223 446 1301 2602 137993 275986 290123 580246 30772439 61544878 179528893 359057786 40034943139 80069886278