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78542453407080 = 23351350347726543
BaseRepresentation
bin10001110110111100010111…
…000010001111110101101000
3101022002120210121210102012210
4101312330113002033311220
540243314421033011310
6435013523250405120
722354335133364025
oct2166742702176550
9338076717712183
1078542453407080
1123031738394953
1289860788907a0
1334a96a1b95c40
14155769169854c
1591310964b820
hex476f1708fd68

78542453407080 has 64 divisors (see below), whose sum is σ = 253752541781760. Its totient is φ = 19333526992128.

The previous prime is 78542453407079. The next prime is 78542453407127. The reversal of 78542453407080 is 8070435424587.

78542453407080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 78542453407080.

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, 25173861712 + ... + 25173864831.

It is an arithmetic number, because the mean of its divisors is an integer number (3964883465340).

Almost surely, 278542453407080 is an apocalyptic number.

It is an amenable number.

78542453407080 is an abundant number, since it is smaller than the sum of its proper divisors (175210088374680).

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

78542453407080 is a wasteful number, since it uses less digits than its factorization.

78542453407080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50347726570 (or 50347726566 counting only the distinct ones).

The product of its (nonzero) digits is 30105600, while the sum is 57.

The spelling of 78542453407080 in words is "seventy-eight trillion, five hundred forty-two billion, four hundred fifty-three million, four hundred seven thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 195 260 312 390 520 780 1560 50347726543 100695453086 151043179629 201390906172 251738632715 302086359258 402781812344 503477265430 604172718516 654520445059 755215898145 1006954530860 1208345437032 1309040890118 1510431796290 1963561335177 2013909061720 2618081780236 3020863592580 3272602225295 3927122670354 5236163560472 6041727185160 6545204450590 7854245340708 9817806675885 13090408901180 15708490681416 19635613351770 26180817802360 39271226703540 78542453407080