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80448154690 = 2564712434027
BaseRepresentation
bin100101011101100010…
…1010110110001000010
321200122120101200122211
41022323011112301002
52304224211422230
6100542443052334
75545403014021
oct1127305266102
9250576350584
1080448154690
1131132982362
1213711b110aa
137780c368c7
143c724b68b8
15215c9e542a
hex12bb156c42

80448154690 has 16 divisors (see below), whose sum is σ = 145030502592. Its totient is φ = 32129523184.

The previous prime is 80448154679. The next prime is 80448154693. The reversal of 80448154690 is 9645184408.

It is a happy number.

It is a super-2 number, since 2×804481546902 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80448154693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6210544 + ... + 6223483.

It is an arithmetic number, because the mean of its divisors is an integer number (9064406412).

Almost surely, 280448154690 is an apocalyptic number.

80448154690 is a deficient number, since it is larger than the sum of its proper divisors (64582347902).

80448154690 is a wasteful number, since it uses less digits than its factorization.

80448154690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12434681.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 80448154690 in words is "eighty billion, four hundred forty-eight million, one hundred fifty-four thousand, six hundred ninety".

Divisors: 1 2 5 10 647 1294 3235 6470 12434027 24868054 62170135 124340270 8044815469 16089630938 40224077345 80448154690