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80070780800 = 275225022119
BaseRepresentation
bin100101010010010010…
…1110010011110000000
321122200021022010000002
41022210211302132000
52302441104441200
6100441202415132
75533141256423
oct1124445623600
9248607263002
1080070780800
1130a5996080a
12136276614a8
1377209b7b4a
143c383219ba
152139800bd5
hex12a4972780

80070780800 has 48 divisors (see below), whose sum is σ = 197799858600. Its totient is φ = 32028311040.

The previous prime is 80070780791. The next prime is 80070780817. The reversal of 80070780800 is 808707008.

It is a super-2 number, since 2×800707808002 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12507860 + ... + 12514259.

Almost surely, 280070780800 is an apocalyptic number.

80070780800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80070780800 is an abundant number, since it is smaller than the sum of its proper divisors (117729077800).

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

80070780800 is a wasteful number, since it uses less digits than its factorization.

80070780800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25022143 (or 25022126 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 38.

The spelling of 80070780800 in words is "eighty billion, seventy million, seven hundred eighty thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 320 400 640 800 1600 3200 25022119 50044238 100088476 125110595 200176952 250221190 400353904 500442380 625552975 800707808 1000884760 1251105950 1601415616 2001769520 2502211900 3202831232 4003539040 5004423800 8007078080 10008847600 16014156160 20017695200 40035390400 80070780800