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80648583549 = 376934958207
BaseRepresentation
bin100101100011100000…
…1111011100101111101
321201011112112112100220
41023013001323211331
52310132014133144
6101014403011553
75553355435512
oct1130701734575
9251145475326
1080648583549
1131226028546
1213769069bb9
1377b3611171
143c90d6b309
1521703d6919
hex12c707b97d

80648583549 has 8 divisors (see below), whose sum is σ = 107671280640. Its totient is φ = 53695804416.

The previous prime is 80648583503. The next prime is 80648583557. The reversal of 80648583549 is 94538584608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80648583549 - 215 = 80648550781 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80648583492 and 80648583501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80648583569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17476797 + ... + 17481410.

It is an arithmetic number, because the mean of its divisors is an integer number (13458910080).

Almost surely, 280648583549 is an apocalyptic number.

It is an amenable number.

80648583549 is a deficient number, since it is larger than the sum of its proper divisors (27022697091).

80648583549 is a wasteful number, since it uses less digits than its factorization.

80648583549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34958979.

The product of its (nonzero) digits is 33177600, while the sum is 60.

The spelling of 80648583549 in words is "eighty billion, six hundred forty-eight million, five hundred eighty-three thousand, five hundred forty-nine".

Divisors: 1 3 769 2307 34958207 104874621 26882861183 80648583549