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80693194740 = 22356581204359
BaseRepresentation
bin100101100100110110…
…0000110111111110100
321201021122111000102020
41023021230012333310
52310224424212430
6101023035113140
75554436560344
oct1131154067764
9251248430366
1080693194740
11312492285a4
121377bba27b0
1377bc930812
143c96c60d24
152174299b10
hex12c9b06ff4

80693194740 has 48 divisors (see below), whose sum is σ = 225976383360. Its totient is φ = 21514810240.

The previous prime is 80693194709. The next prime is 80693194781. The reversal of 80693194740 is 4749139608.

It is a super-2 number, since 2×806931947402 (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 15 ways as a sum of consecutive naturals, for example, 292681 + ... + 497039.

It is an arithmetic number, because the mean of its divisors is an integer number (4707841320).

Almost surely, 280693194740 is an apocalyptic number.

It is an amenable number.

80693194740 is an abundant number, since it is smaller than the sum of its proper divisors (145283188620).

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

80693194740 is a wasteful number, since it uses less digits than its factorization.

80693194740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210952 (or 210950 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 80693194740 in words is "eighty billion, six hundred ninety-three million, one hundred ninety-four thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 6581 13162 19743 26324 32905 39486 65810 78972 98715 131620 197430 204359 394860 408718 613077 817436 1021795 1226154 2043590 2452308 3065385 4087180 6130770 12261540 1344886579 2689773158 4034659737 5379546316 6724432895 8069319474 13448865790 16138638948 20173298685 26897731580 40346597370 80693194740