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78080082552 = 23321084445591
BaseRepresentation
bin100100010110111101…
…1111000001001111000
321110112112110011101100
41020231323320021320
52234402000120202
655511451051400
75432616515433
oct1105573701170
9243475404340
1078080082552
113012819774a
1213170a40b60
1374944495a4
143ac9ba881a
15206eb7941c
hex122def8278

78080082552 has 24 divisors (see below), whose sum is σ = 211466890440. Its totient is φ = 26026694160.

The previous prime is 78080082523. The next prime is 78080082599. The reversal of 78080082552 is 25528008087.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 78080082498 and 78080082507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 542222724 + ... + 542222867.

It is an arithmetic number, because the mean of its divisors is an integer number (8811120435).

Almost surely, 278080082552 is an apocalyptic number.

78080082552 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78080082552 is an abundant number, since it is smaller than the sum of its proper divisors (133386807888).

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

78080082552 is a wasteful number, since it uses less digits than its factorization.

78080082552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084445603 (or 1084445596 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The spelling of 78080082552 in words is "seventy-eight billion, eighty million, eighty-two thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1084445591 2168891182 3253336773 4337782364 6506673546 8675564728 9760010319 13013347092 19520020638 26026694184 39040041276 78080082552