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80000448040 = 23541407911959
BaseRepresentation
bin100101010000001100…
…1011111011000101000
321122111100221211121001
41022200121133120220
52302320103314130
6100430211124344
75531325405562
oct1124031373050
9248440854531
1080000448040
1130a23192767
1213607ba36b4
13770c260a26
143c2cc54332
15213355b6ca
hex12a065f628

80000448040 has 64 divisors (see below), whose sum is σ = 184451904000. Its totient is φ = 31209423360.

The previous prime is 80000448013. The next prime is 80000448041. The reversal of 80000448040 is 4084400008.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80000448041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6683581 + ... + 6695539.

It is an arithmetic number, because the mean of its divisors is an integer number (2882061000).

Almost surely, 280000448040 is an apocalyptic number.

It is an amenable number.

80000448040 is an abundant number, since it is smaller than the sum of its proper divisors (104451455960).

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

80000448040 is a wasteful number, since it uses less digits than its factorization.

80000448040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16090 (or 16086 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 80000448040 its reverse (4084400008), we get a palindrome (84084848048).

The spelling of 80000448040 in words is "eighty billion, four hundred forty-eight thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 1640 4079 8158 11959 16316 20395 23918 32632 40790 47836 59795 81580 95672 119590 163160 167239 239180 334478 478360 490319 668956 836195 980638 1337912 1672390 1961276 2451595 3344780 3922552 4903190 6689560 9806380 19612760 48780761 97561522 195123044 243903805 390246088 487807610 975615220 1951230440 2000011201 4000022402 8000044804 10000056005 16000089608 20000112010 40000224020 80000448040