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80398886064 = 24371657144407
BaseRepresentation
bin100101011100000100…
…1011010010010110000
321200112010200120210220
41022320021122102300
52304124103323224
6100533523053040
75544234153510
oct1127011322260
9250463616726
1080398886064
1131108091092
12136b9511180
137773976383
143c69b2d840
152158512279
hex12b825a4b0

80398886064 has 80 divisors (see below), whose sum is σ = 237513036288. Its totient is φ = 22957088256.

The previous prime is 80398886041. The next prime is 80398886069. The reversal of 80398886064 is 46068889308.

It is a junction number, because it is equal to n+sod(n) for n = 80398885989 and 80398886007.

It is not an unprimeable number, because it can be changed into a prime (80398886069) 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, 484549 + ... + 628955.

Almost surely, 280398886064 is an apocalyptic number.

80398886064 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

80398886064 is an abundant number, since it is smaller than the sum of its proper divisors (157114150224).

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

80398886064 is a wasteful number, since it uses less digits than its factorization.

80398886064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146082 (or 146076 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 60.

The spelling of 80398886064 in words is "eighty billion, three hundred ninety-eight million, eight hundred eighty-six thousand, sixty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 1657 3314 4971 6628 9942 11599 13256 19884 23198 26512 34797 39768 46396 69594 79536 92792 139188 144407 185584 278376 288814 433221 556752 577628 866442 1010849 1155256 1732884 2021698 2310512 3032547 3465768 4043396 6065094 6931536 8086792 12130188 16173584 24260376 48520752 239282399 478564798 717847197 957129596 1435694394 1674976793 1914259192 2871388788 3349953586 3828518384 5024930379 5742777576 6699907172 10049860758 11485555152 13399814344 20099721516 26799628688 40199443032 80398886064