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80808444440 = 2353596199091
BaseRepresentation
bin100101101000010001…
…1110000001000011000
321201120200100022021122
41023100203300020120
52310443430210230
6101042313224412
75560336305323
oct1132043601030
9251520308248
1080808444440
11312a8295389
12137b2702108
13780a7834c9
143ca82a17ba
15217e462be5
hex12d08f0218

80808444440 has 64 divisors (see below), whose sum is σ = 182640096000. Its totient is φ = 32177727360.

The previous prime is 80808444433. The next prime is 80808444473. The reversal of 80808444440 is 4444480808.

It is a junction number, because it is equal to n+sod(n) for n = 80808444391 and 80808444400.

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 15 ways as a sum of consecutive naturals, for example, 8884295 + ... + 8893385.

It is an arithmetic number, because the mean of its divisors is an integer number (2853751500).

Almost surely, 280808444440 is an apocalyptic number.

It is an amenable number.

80808444440 is an abundant number, since it is smaller than the sum of its proper divisors (101831651560).

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

80808444440 is a wasteful number, since it uses less digits than its factorization.

80808444440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080 (or 10076 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 44.

The spelling of 80808444440 in words is "eighty billion, eight hundred eight million, four hundred forty-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 359 619 718 1238 1436 1795 2476 2872 3095 3590 4952 6190 7180 9091 12380 14360 18182 24760 36364 45455 72728 90910 181820 222221 363640 444442 888884 1111105 1777768 2222210 3263669 4444420 5627329 6527338 8888840 11254658 13054676 16318345 22509316 26109352 28136645 32636690 45018632 56273290 65273380 112546580 130546760 225093160 2020211111 4040422222 8080844444 10101055555 16161688888 20202111110 40404222220 80808444440