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80385998 = 27111983331
BaseRepresentation
bin1001100101010…
…01011111001110
312121021000212012
410302221133032
5131034322443
611550541222
71664161340
oct462513716
9177230765
1080385998
1141415210
1222b07812
1313866ca4
14a967290
1570cd118
hex4ca97ce

80385998 has 64 divisors (see below), whose sum is σ = 160634880. Its totient is φ = 29224800.

The previous prime is 80385973. The next prime is 80386003. The reversal of 80385998 is 89958308.

It is a super-3 number, since 3×803859983 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242693 + ... + 243023.

It is an arithmetic number, because the mean of its divisors is an integer number (2509920).

Almost surely, 280385998 is an apocalyptic number.

80385998 is a deficient number, since it is larger than the sum of its proper divisors (80248882).

80385998 is a wasteful number, since it uses less digits than its factorization.

80385998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 80385998 is about 8965.8238885225. The cubic root of 80385998 is about 431.5788326398.

The spelling of 80385998 in words is "eighty million, three hundred eighty-five thousand, nine hundred ninety-eight".

Divisors: 1 2 7 11 14 19 22 38 77 83 133 154 166 209 266 331 418 581 662 913 1162 1463 1577 1826 2317 2926 3154 3641 4634 6289 6391 7282 11039 12578 12782 17347 22078 25487 27473 34694 44023 50974 54946 69179 88046 121429 138358 192311 242858 302203 384622 484253 521987 604406 968506 1043974 2115421 3653909 4230842 5741857 7307818 11483714 40192999 80385998